ci: ワークフローが更新されたときにもワークフローが起動するようにする (#14207)

* ci: include themselves in `on.push.paths`
command: find .github/workflows -type f \( -name '*.yaml' -or -name '*.yml' \) | xargs -I {} yq_4.44.2-linux_x86-64 'select(.on.push.paths != null) | .[0] | map("{}")[0]' {} | xargs -I {} ~/.local/bin/yq_4.44.2-linux_x86-64 -i '.on.push.paths += ["{}"]' {}

* ci: include themselves in `on.pull_request.paths`
command: find .github/workflows -type f \( -name '*.yaml' -or -name '*.yml' \) | xargs -I {} yq_4.44.2-linux_x86-64 'select(.on.pull_request.paths != null) | .[0] | map("{}")[0]' {} | xargs -I {} ~/.local/bin/yq_4.44.2-linux_x86-64 -i '.on.pull_request.paths += ["{}"]' {}

.github/workflows/test-backend.yml

@@ -9,12 +9,13 @@ on:
       - packages/backend/**
       # for permissions
       - packages/misskey-js/**
+      - .github/workflows/test-backend.yml
   pull_request:
     paths:
       - packages/backend/**
       # for permissions
       - packages/misskey-js/**
-
+      - .github/workflows/test-backend.yml
 jobs:
   unit:
     runs-on: ubuntu-latest