build(deps): bump actions/cache from 2.1.6 to 4.0.2

Bumps [actions/cache](https://github.com/actions/cache) from 2.1.6 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@v2.1.6...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>

.github/workflows/ide-diff-builder.yml

@@ -44,14 +44,14 @@ jobs:
 
       # Cache Gradle dependencies
       - name: Setup Gradle Dependencies Cache
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v4.0.2
         with:
           path: ~/.gradle/caches
           key: ${{ runner.os }}-gradle-caches-${{ hashFiles('**/*.gradle', '**/*.gradle.kts', 'gradle.properties') }}
 
       # Cache Gradle Wrapper
       - name: Setup Gradle Wrapper Cache
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v4.0.2
         with:
           path: ~/.gradle/wrapper
           key: ${{ runner.os }}-gradle-wrapper-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties') }}

.github/workflows/intellij-feature-extractor.yml

@@ -44,14 +44,14 @@ jobs:
 
       # Cache Gradle dependencies
       - name: Setup Gradle Dependencies Cache
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v4.0.2
         with:
           path: ~/.gradle/caches
           key: ${{ runner.os }}-gradle-caches-${{ hashFiles('**/*.gradle', '**/*.gradle.kts', 'gradle.properties') }}
 
       # Cache Gradle Wrapper
       - name: Setup Gradle Wrapper Cache
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v4.0.2
         with:
           path: ~/.gradle/wrapper
           key: ${{ runner.os }}-gradle-wrapper-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties') }}

.github/workflows/intellij-plugin-structure.yml

@@ -44,14 +44,14 @@ jobs:
 
       # Cache Gradle dependencies
       - name: Setup Gradle Dependencies Cache
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v4.0.2
         with:
           path: ~/.gradle/caches
           key: ${{ runner.os }}-gradle-caches-${{ hashFiles('**/*.gradle', '**/*.gradle.kts', 'gradle.properties') }}
 
       # Cache Gradle Wrapper
       - name: Setup Gradle Wrapper Cache
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v4.0.2
         with:
           path: ~/.gradle/wrapper
           key: ${{ runner.os }}-gradle-wrapper-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties') }}

.github/workflows/intellij-plugin-verifier.yml

@@ -44,14 +44,14 @@ jobs:
 
       # Cache Gradle dependencies
       - name: Setup Gradle Dependencies Cache
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v4.0.2
         with:
           path: ~/.gradle/caches
           key: ${{ runner.os }}-gradle-caches-${{ hashFiles('**/*.gradle', '**/*.gradle.kts', 'gradle.properties') }}
 
       # Cache Gradle Wrapper
       - name: Setup Gradle Wrapper Cache
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v4.0.2
         with:
           path: ~/.gradle/wrapper
           key: ${{ runner.os }}-gradle-wrapper-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties') }}

.github/workflows/plugins-verifier-service.yml

@@ -44,14 +44,14 @@ jobs:
 
       # Cache Gradle dependencies
       - name: Setup Gradle Dependencies Cache
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v4.0.2
         with:
           path: ~/.gradle/caches
           key: ${{ runner.os }}-gradle-caches-${{ hashFiles('**/*.gradle', '**/*.gradle.kts', 'gradle.properties') }}
 
       # Cache Gradle Wrapper
       - name: Setup Gradle Wrapper Cache
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v4.0.2
         with:
           path: ~/.gradle/wrapper
           key: ${{ runner.os }}-gradle-wrapper-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties') }}