ci: bump actions/cache from 3.3.2 to 4.0.2

Bumps [actions/cache](https://github.com/actions/cache) from 3.3.2 to 4.0.2.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v3.3.2...v4.0.2)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/build_documentation.yaml

@@ -27,7 +27,7 @@ jobs:
           path: code_docs/Arduino-SDI-12
 
       - name: Restore or Cache pip
-        uses: actions/cache@v3.3.2
+        uses: actions/cache@v4.0.2
         id: cache_pip
         with:
           path: ~/.cache/pip
@@ -37,7 +37,7 @@ jobs:
           restore-keys: ${{ runner.os }}-pip-
 
       - name: Restore or Cache PlatformIO and Libraries
-        uses: actions/cache@v3.3.2
+        uses: actions/cache@v4.0.2
         id: cache_pio
         with:
           path: ~/.platformio
@@ -70,7 +70,7 @@ jobs:
 
       - name: Restore or Cache Doxygen
         id: cache_doxygen
-        uses: actions/cache@v3.3.2
+        uses: actions/cache@v4.0.2
         with:
           path: doxygen-src
           key: ${{ runner.os }}-doxygen-${{ env.DOXYGEN_VERSION }}

.github/workflows/build_examples.yaml

@@ -39,7 +39,7 @@ jobs:
           fi
 
       - name: Restore or Cache pip
-        uses: actions/cache@v3.3.2
+        uses: actions/cache@v4.0.2
         with:
           path: ~/.cache/pip
           # if requirements.txt hasn't changed, then it will be a "cache hit" and pip will be restored
@@ -48,7 +48,7 @@ jobs:
           restore-keys: ${{ runner.os }}-pip-
 
       - name: Restore or Cache PlatformIO and Libraries
-        uses: actions/cache@v3.3.2
+        uses: actions/cache@v4.0.2
         with:
           path: ~/.platformio
           # if nothing in the lock files has changed, then it will be a "cache hit" and pip will be restored

.github/workflows/prepare_release.yaml

@@ -28,7 +28,7 @@ jobs:
           echo "VERSION=$VER" >> $GITHUB_ENV
 
       - name: Restore or Cache pip
-        uses: actions/cache@v3.3.2
+        uses: actions/cache@v4.0.2
         with:
           path: ~/.cache/pip
           # if requirements.txt hasn't changed, then it will be a "cache hit" and pip will be restored

.github/workflows/verify_library_json.yaml

@@ -15,7 +15,7 @@ jobs:
         uses: actions/setup-node@v4.0.2
 
       - name: Cache Node.js modules
-        uses: actions/cache@v3.3.2
+        uses: actions/cache@v4.0.2
         with:
           # npm cache files are stored in `~/.npm` on Linux/macOS
           path: ~/.npm