Merge pull request percona#252 from percona/v2.5.5-version-bump

RM-1254: ProxySQL 2.5.5

RM-1241: ProxySQL 2.5.4

https://jira.percona.com/browse/RM-1241

Bumped the version to 2.5.3.

RM-1235: Bump version to 2.5.3

https://jira.percona.com/browse/RM-1235

Bumped the version to 2.5.3.

Merge pull request percona#248 from venkatesh-prasad-v/v2.5.2-version…

…-bump

RM-1229: Bump version to 2.5.2

Merge pull request percona#246 from venkatesh-prasad-v/2.5.1

RM-1201: Bump version to 2.5.1

Merge pull request percona#244 from venkatesh-prasad-v/v2.4.8-version…

…-bump

RM-1185: Bump version to 2.4.8.

Merge pull request percona#243 from venkatesh-prasad-v/RM-1166-2.4.7

RM-1166: ProxySQL 2.4.7

PSQLADM-433: Include a CVE fix in golang library used by pxc_schedule…

…r_handler

https://jira.percona.com/browse/PSQLADM-433

Updated submodule pointer to include fix CVE-2022-32149

Merge pull request percona#238 from venkatesh-prasad-v/version_bump-2…

….4.4

RM-1110: Bump version to 2.4.4.

Merge pull request percona#236 from venkatesh-prasad-v/cve_fix

Update percona-scheduler submodule to include fix for