chore(main): release 1.2.0

CHANGELOG.md

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+# Changelog
+
+## [1.2.0](https://github.com/GoogleCloudPlatform/functions-framework-php/compare/v1.1.0...v1.2.0) (2022-11-07)
+
+
+### Features
+
+* add class for testing ([#119](https://github.com/GoogleCloudPlatform/functions-framework-php/issues/119)) ([41ab525](https://github.com/GoogleCloudPlatform/functions-framework-php/commit/41ab52514051df9976285fa788a7e7239dec7715))
+
+
+### Miscellaneous Chores
+
+* add GCF buildpack integration test Workflow ([2da1fa3](https://github.com/GoogleCloudPlatform/functions-framework-php/commit/2da1fa3ef34f632aa4179adef830972a5223b572))
+* add GCF buildpack integration test Workflow ([#129](https://github.com/GoogleCloudPlatform/functions-framework-php/issues/129)) ([8db2c42](https://github.com/GoogleCloudPlatform/functions-framework-php/commit/8db2c426cd0c0e4ae32abfe62b2dbf9f73b0b013))
+* fix invoker docblock ([#117](https://github.com/GoogleCloudPlatform/functions-framework-php/issues/117)) ([6d4c545](https://github.com/GoogleCloudPlatform/functions-framework-php/commit/6d4c545183d4c2eb9d89d981904b488c377acd4a))
+* switch master to main ([#121](https://github.com/GoogleCloudPlatform/functions-framework-php/issues/121)) ([c693c8c](https://github.com/GoogleCloudPlatform/functions-framework-php/commit/c693c8c77166fab1fa88a8d47d3fb60768dc3c11))
+* update buildpack integration test ([#132](https://github.com/GoogleCloudPlatform/functions-framework-php/issues/132)) ([e66d6f2](https://github.com/GoogleCloudPlatform/functions-framework-php/commit/e66d6f20b166f5ae9d216051aacdc7f39815568a))
+* use Release Please for releases ([#126](https://github.com/GoogleCloudPlatform/functions-framework-php/issues/126)) ([d5c3589](https://github.com/GoogleCloudPlatform/functions-framework-php/commit/d5c3589012e2daeba963576eaf3748a7b4622b0f))