feat(cmd/sqlc): Bump version to 1.20.0 (sqlc-dev#2549)

* feat(cmd/sqlc): Bump version to 1.20.0

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Co-authored-by: Andrew Benton <[email protected]>

docs: Use downloads.sqlc.dev for install links (sqlc-dev#2456)

cmd/sqlc: Bump version to 1.19.0 (sqlc-dev#2408)

* cmd/sqlc: Bump version to 1.19.0
* Regenerate test output for v1.19.0
* Fix process plugin test

cmd/sqlc: Bump version to 1.18.0 (sqlc-dev#2233)

* cmd/sqlc: Bump version to v1.18.0

* test: Regenerate test output

* docs: Add full list of changes

cmd/sqlc: Bump version to v1.17.2 (sqlc-dev#2103)

* cmd/sqlc: Bump version to v1.17.2

* Regenerate tests and examples

cmd/sqlc: Bump version to 1.17.1 (sqlc-dev#2101)

* cmd/sqlc: Bump version to 1.17.1

* Update examples and tests

* Manually edit the test files

cmd/sqlc: Bump version to 1.17.0 (sqlc-dev#2066)

* Update documentation version

* cmd/sqlc: Bump version to v1.17.0

* docs: Add changelog entry for 1.17.0

* Regenerate test output

* Fix tests

cmd/sqlc: Bump to v1.16.0 (sqlc-dev#1934)

* cmd/sqlc: Bump to v1.16.0
* Update docs for v1.16.0

docs: Add 1.15 changelog (sqlc-dev#1783)

* docs: Add 1.15 changelog

Also add a first-pass at WASM codegen docs

* docs: Fix typo

cmd/sqlc: Bump version to v1.14.0 (sqlc-dev#1670)

* docs: Add changelog for 1.14.0

Also update release notes

* cmd/sqlc: Bump version to v1.14.0

* tests: Regenerate test output

* tests: Regenerate examples output