chore: add test installation on the CI

Author: ldez

.github/workflows/post-release.yml

@@ -103,3 +103,13 @@ jobs:
           branch-suffix: timestamp
           title: "docs: update documentation assets"
           delete-branch: true
+
+  check-install-script:
+    name: Installation script (remote)
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - run: curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b "./install-golangci-lint"

.github/workflows/pr.yml

@@ -128,6 +128,17 @@ jobs:
           # needed for github-action-config.json generation
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
+  check-local-install-script:
+    name: Installation script (local)
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Check installation script
+        run: cat ./install.sh | sh -s -- -d -b "./install-golangci-lint"
+
   # Note: the command `run` is tested by the previous steps (`make test`).
   commands:
     needs: golangci-lint