Prepare for Release 1.2.2 (pt2) (Azure#5142)

# 1.2.2 (2021-06-23)
## Edge Agent
### Bug Fixes
* Properly dispose UDS for Workload Client. ( [472cee5](Azure@472cee5), [f9cdb59](Azure@f9cdb59) )
* Update Base Images for Security Vulnerability ( [d0e6113](Azure@d0e6113) )

### Features
* Use Docker Timestamp When Log Timestamp is not Available in JSON-formatted log. ( [d336d08](Azure@d336d08) )


## Edge Hub
### Bug Fixes
* Update Base Images for Security Vulnerability ( [d0e6113](Azure@d0e6113) )
* Propagate back error code from edgeHub ( [421347d](Azure@421347d) )


## Diagnostic Module
### Bug Fixes
* Fix potential instability in iotedged after UploadSupportBundle fails. ( [f567e38](Azure@f567e38) )
* Update Base Images for Security Vulnerability ( [d0e6113](Azure@d0e6113) )


## Temperature Filter Function Module
### Bug Fixes
* Update Temperature Filter Function sample module to be using .NET3.0. ( [adf8878](Azure@adf8878) )


## aziot-edge
### Bug Fixes
* Fix provisioning behavior when DPS changes. ( [c6e8900](Azure@c6e8900) )
* Limit sysinfo crate FDs usage. ( [5947981](Azure@5947981) )

### Features
* Enable aziot-edged in CentOS package. ( [0539cdb](Azure@0539cdb) )
* Update IoT Identity Service to version 1.2.1 ( [572de56](Azure@572de56) )

Metrics Collector: Add changelog for initial release (Azure#5080)

New Helm Chart (0.2.13), new image tag (1.1-k8s-beta15) (Azure#5031)

Update Helm charts and images for beta15
New in Beta 15:

[k8s] Updating native-tls will allow root ca certs in trust bundles. (Azure#4980)

If the customer had a trust bundle containing root CAs already in the certificate store,
creating a TLS connection would fail. This will avoid that error.

Add iotedged.data.runtimeLogLevel to helm chart settings. (Azure#4936)

The iotedged pod had a default logging value which could not easily be changed.
This allows the customer to set it through the Helm charts.

Ensure new TLS server certificate is always created on CertificateManager::new() (Azure#4921)

The iotedged pod was not correctly renewing its server certificate. This caused the edge runtime
to fail after 90 days (the default timeout for the server cert).

"task" is awaited twice in KubernetesEnvironmentOperator. This may have the effect of silently shutting down the Environment operator when the "ListPods" fails in specific ways.(Azure#4793)

Removed what looks like a merge error.

cherry-pick all 1.1 branch commits.

Prepare for Release 1.2.1

# 1.2.1 (2021-06-01)
## Edge Agent
### Bug Fixes
* Update Base Images for Security Patch. ( [513f721](Azure@513f721) )


## Edge Hub
### Bug Fixes
* Update bridge config validation. ( [afdc9c2](Azure@afdc9c2) )
* Device scope cache retry for first initialization. ( [3b903a1](Azure@3b903a1) )
* Add validation for null props inside objects inside arrays. ( [c25fcb9](Azure@c25fcb9) )
* Adds SharedAccessSignature to repo with fix for vulnerability. ( [60d411c](Azure@60d411c) )
* Update GetModuleLogs method when tail + since + until options are provided. ( [2b650a8](Azure@2b650a8) )
* Fix edgehub queue len metric ( [4068369](Azure@4068369) )
* Update Base Images for Security Patch. ( [513f721](Azure@513f721) )


### Features
* Restore device scopes from older store. ( [c90245b](Azure@c90245b) )


## aziot-edge
### Features
* Introduce Timestamps Option via mgmt.sock. ( [37c661b](Azure@37c661b) )

Prepare for Release1.1.3 (part 2) (Azure#5020)

Includes 
* Fix Diagnostics Module's Websocket behind proxy. [6b32f3c](Azure@6b32f3c)

For the release

Prepare for Release 1.1.2

Prepare for Release 1.1.2

Prepare for Release 1.2.0 (pt.2) (Azure#4820)

- Update with yesterday commits.

[k8s] Update Helm charts and version for beta14 (Azure#4737)

Update Helm chart to 0.2.12.
Update image tag to 1.1-k8s-beta14.

Changes for beta14:

- Synchronized with 1.1.1 release. (Azure#4647) (Azure#4529)
	See 1.1.1 release note for details:https://github.com/Azure/azure-iotedge/releases/tag/1.1.1

- [k8s] Shorten all k8s watch timeouts. Azure#4618
	The C# SDK watches were silently failing with the longer default timeouts. The default timeout is now 3 minutes, but may be adjusted by setting "AgentOperatorTimeoutSeconds" in the Agent deployment.

- [k8s] Throw non-fatal exception if Mounts missing critical data. (Azure#4674)
	Code was referencing elements in Mount object without null checks. This	change checks the value before use and reports euro back through ReportedStatus.

- [k8s] Translate hostConfig.PidMode=host into podspec.hostPID=true. (Azure#4329)
	Allows Pod to use host PID.

- [k8s] Fix problem with multiple Binds to the same source. (Azure#4341)
	If two Binds or Mounts resolve to the same name, which implies they are the same source, reduce that to one Volume in the PodSpec.

- [k8s] Insert edgedevicehostname into modules (Azure#4634)
	A request to make Edge on K8s more compatible with nested edge.

- [Doc] fix broken links (Azure#4516)
	Minor documentation improvements.

Prepare for Release 1.1.1 (pt2) (Azure#4617)

- Update release date
- Include documentation update commit.

Update postrm to delete iotedge user on purge (Azure#4533) (Azure#4550)

Updates postrm so that apt purge fully removes all files used by aziot-edge and removes iotedge user.

This only applies to Debian, as CentOS (rpm) doesn't have a purge command.