chore(main): release 0.28.3

[release-please[bot]]

:robot: I have created a release beep boop

0.28.3 (2023-08-18)

Bug Fixes

• bazel: Include package_name for type-only csharp (#176) (49fd5ac)
• bazel: Missing loads in type-only template (#174) (6f470d6)
• bazel: Throw RuntimeExceptions, including missing type-only chsarp_namespace (#177) (ee90649)

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[release-please[bot]]

:robot: Release is at https://github.com/googleapis/rules_gapic/releases/tag/v0.28.3 :sunflower: