Drop buf-bin-setup from CI

We don't need this matrix after removing the test; we'll just always
install the `buf` CLI.

Also renames the file to `ci.yaml` to match the intent and job name.

Author: stefanvanburen

.github/workflows/build.yaml .github/workflows/ci.yaml.github/workflows/build.yaml renamed to .github/workflows/ci.yaml

@@ -9,10 +9,6 @@ jobs:
           - macos-latest
           - ubuntu-latest
           - windows-latest
-        buf-bin-setup:
-          # these strings are referenced in the tests
-          - buf-on-path
-          - buf-not-on-path
     runs-on: ${{ matrix.os }}
     steps:
       - name: checkout
@@ -23,7 +19,6 @@ jobs:
           node-version-file: ".nvmrc"
           cache: npm
       - uses: bufbuild/buf-action@v1
-        if: matrix.buf-bin-setup == 'buf-on-path'
         with:
           setup_only: true
       - name: install-deps
@@ -38,33 +33,27 @@ jobs:
         run: npm run format
       - name: integration-tests-with-xvfb
         env:
-          BUF_INSTALLED: ${{ matrix.buf-bin-setup }}
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: xvfb-run -a npm run test:integration
         if: runner.os == 'Linux'
       - name: integration-tests
         shell: bash
         env:
-          BUF_INSTALLED: ${{ matrix.buf-bin-setup }}
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: npm run test:integration
         if: runner.os != 'Linux'
       - name: playwright-tests
         run: npm run test:playwright
         # Limiting playwright tests to macOS for now due to issues with xvfb on Linux and
         # timeouts on windows
-        #
-        # NOTE: We disable playwright tests when buf is not installed on the system $PATH
-        # for now so we don't have the extension attempting to resolve the installation.
-        # We'll need to find a way to intercept the call from playwright's VS Code extension.
-        if: runner.os == 'macOS' && matrix.buf-bin-setup == 'buf-on-path'
+        if: runner.os == 'macOS'
       - name: check diff
         run: node scripts/gh-diffcheck.mjs
       - name: upload-playwright-test-results
         uses: actions/upload-artifact@v6
         if: always()
         with:
-          name: test-results-${{ matrix.buf-bin-setup }}
+          name: test-results
           path: test-results/
           retention-days: 5
           if-no-files-found: ignore