build(deps): bump github/codeql-action from 3 to 4

Bumps [github/codeql-action](https://github.com/github/codeql-action) from 3 to 4.
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/github/codeql-action/compare/v3...v4)

---
updated-dependencies:
- dependency-name: github/codeql-action
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/codeql.yml

@@ -20,7 +20,7 @@ jobs:
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v3
+      uses: github/codeql-action/init@v4
       # Override language selection by uncommenting this and choosing your languages
       # with:
       #   languages: go, javascript, csharp, python, cpp, java, ruby
@@ -28,7 +28,7 @@ jobs:
     # Autobuild attempts to build any compiled languages (C/C++, C#, Go, or Java).
     # If this step fails, then you should remove it and run the build manually (see below).
     - name: Autobuild
-      uses: github/codeql-action/autobuild@v3
+      uses: github/codeql-action/autobuild@v4
 
     # ℹ️ Command-line programs to run using the OS shell.
     # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
@@ -42,4 +42,4 @@ jobs:
     #     make release
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v3
+      uses: github/codeql-action/analyze@v4

examples.md

@@ -25,7 +25,6 @@
 - [Node - Yarn](#node---yarn)
 - [Node - Yarn 2](#node---yarn-2)
 - [OCaml/Reason - esy](#ocamlreason---esy)
-- [OCaml/Reason - opam](#ocamlreason---opam)
 - [PHP - Composer](#php---composer)
 - [Python - pip](#python---pip)
   - [Simple example](#simple-example)
@@ -438,30 +437,6 @@ Esy allows you to export built dependencies and import pre-built dependencies.
       if: steps.restore-cache.outputs.cache-hit != 'true'
 ```
 
-## OCaml/Reason - opam
-
-This example requires you to have `opam.locked` file which you can generate with `opam lock .`.
-
-It's worth noting that even if lock file was change, it might be optimal to restore previous cache, so `hashFiles` in the key and if statement in "Save opam cache" step are optional.
-```yaml
-    - name: Restore opam cache
-      id: restore-cache
-      uses: actions/cache/restore@v4
-      with:
-        path: _opam
-        key: ${{ runner.os }}-opam-${{ hashFiles('opam.locked') }}
-
-    - name: Install dependencies
-      run: opam install . --locked --deps-only -y
-
-    - name: Save opam cache
-      if: steps.restore-cache.outputs.cache-hit != 'true'
-      uses: actions/cache/save@v4
-      with:
-        path: _opam
-        key: ${{ steps.restore-cache.outputs.cache-primary-key }}
-```
-
 ## PHP - Composer
 
 ```yaml