[MINOR][INFRA] Add io and net to GitHub Action Cache

### What changes were proposed in this pull request?

This PR aims to cache `~/.m2/repository/net` and `~/.m2/repository/io` to reduce the flakiness.

### Why are the changes needed?

This will stabilize GitHub Action more before adding `hive-1.2` and `hive-2.3` combination.

### Does this PR introduce any user-facing change?

No.

### How was this patch tested?

After the GitHub Action on this PR passes, check the log.

Closes #26621 from dongjoon-hyun/SPARK-GHA-CACHE.

Authored-by: Dongjoon Hyun <dhyun@apple.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>

.github/workflows/master.yml

@@ -36,6 +36,18 @@ jobs:
         key: ${{ matrix.java }}-${{ matrix.hadoop }}-maven-org-${{ hashFiles('**/pom.xml') }}
         restore-keys: |
           ${{ matrix.java }}-${{ matrix.hadoop }}-maven-org-
+    - uses: actions/cache@v1
+      with:
+        path: ~/.m2/repository/net
+        key: ${{ matrix.java }}-${{ matrix.hadoop }}-maven-net-${{ hashFiles('**/pom.xml') }}
+        restore-keys: |
+          ${{ matrix.java }}-${{ matrix.hadoop }}-maven-net-
+    - uses: actions/cache@v1
+      with:
+        path: ~/.m2/repository/io
+        key: ${{ matrix.java }}-${{ matrix.hadoop }}-maven-io-${{ hashFiles('**/pom.xml') }}
+        restore-keys: |
+          ${{ matrix.java }}-${{ matrix.hadoop }}-maven-io-
     - name: Set up JDK ${{ matrix.java }}
       uses: actions/setup-java@v1
       with: