ci: update versions & remove conditional sync

Author: eruizalo

.github/workflows/github-actions-basic.yml

@@ -29,15 +29,15 @@ jobs:
       SPARK_VERSION: ${{ matrix.spark }}
     steps:
     - name: Checkout spark-testing-base
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4.1.1
       # In order to fetch changed files
       with:
         fetch-depth: 0
         repository: holdenk/spark-testing-base
         ref: main
     - name: Cache maven modules
       id: cache-maven
-      uses: actions/cache@v3
+      uses: actions/cache@v4.0.0
       env:
         cache-name: cache-maven
       with:
@@ -52,7 +52,7 @@ jobs:
           ${{ runner.os }}-${{ matrix.spark }}-
           ${{ runner.os }}
     - name: Sync the current branch with the latest in spark-testing-base
-      if: github.repository != 'holdenk/spark-testing-base'
+      # if: github.repository != 'holdenk/spark-testing-base'
       id: sync-branch
       run: |
         apache_spark_ref=`git rev-parse HEAD`