fix(approvals-satisfied): codeowners_overrides should replace existing patterns (#707)

Co-authored-by: Trey Philips <[email protected]>

Author: treyp

README.md

@@ -74,7 +74,8 @@ Each of the following helpers are defined in a file of the same name in `src/hel
 
 - Returns `true` if the PR has been approved by the specified GitHub team(s) or user(s) and `false` otherwise
 - If GitHub teams are omitted, uses `CODEOWNERS` to determine teams and/or users to use.
-- The parameter `codeowners_overrides` can be used to override entries from `CODEOWNERS`. It is a string formatted as comma-separated list of lines in [the `CODEOWNERS` syntax](https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners#codeowners-syntax). For example: `/path/foo @user1 @user2,/path/bar @user3`
+- The parameter `codeowners_overrides` can be used to override entries from `CODEOWNERS`. It is a string formatted as comma-separated list of lines in [the `CODEOWNERS` syntax](https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners#codeowners-syntax). Exact pattern matches in CODEOWNERS will be replaced. Unmatched patterns will be appended.
+    - example: `/path/foo @user1 @user2,/path/bar @user3`
 - Note: If you are providing teams in input, full team name is NOT needed. i.e. `team-name` works and `org/team-name` is NOT needed
 
 ### [approve-pr](.github/workflows/approve-pr.yml)

action.yml

@@ -146,7 +146,7 @@ inputs:
     description: 'A comma-separated list of team overrides which specify the number of required reviews per team (e.g. "@ExpediaGroup/team1:1,@ExpediaGroup/team2:2")'
     required: false
   codeowners_overrides:
-    description: 'A comma-separated list of lines formatted in GitHub CODEOWNERS syntax which override the CODEOWNERS file (e.g. "/path/foo @user1 @user2,/path/bar @user3")'
+    description: 'A comma-separated list of lines formatted in GitHub CODEOWNERS syntax which override the CODEOWNERS file (e.g. "/path/foo @user1 @user2,/path/bar @user3"). Exact pattern matches in CODEOWNERS will be replaced. Unmatched patterns will be appended.'
     required: false
   max_queue_size:
     description: 'The maximum number of PRs that can be in the merge queue at any given time'