Revert "[SPARK-27979][BUILD][test-maven] Remove deprecated --force …

…option in `build/mvn` and `run-tests.py`"

This reverts commit 354ec25.

build/mvn

@@ -134,6 +134,12 @@ install_scala() {
 # the environment
 ZINC_PORT=${ZINC_PORT:-"3030"}
 
+# Remove `--force` for backward compatibility.
+if [ "$1" == "--force" ]; then
+  echo "WARNING: '--force' is deprecated and ignored."
+  shift
+fi
+
 # Install the proper version of Scala, Zinc and Maven for the build
 install_zinc
 install_scala

dev/run-tests.py

@@ -240,7 +240,7 @@ def exec_maven(mvn_args=()):
     zinc_port = get_zinc_port()
     os.environ["ZINC_PORT"] = "%s" % zinc_port
     zinc_flag = "-DzincPort=%s" % zinc_port
-    flags = [os.path.join(SPARK_HOME, "build", "mvn"), zinc_flag]
+    flags = [os.path.join(SPARK_HOME, "build", "mvn"), "--force", zinc_flag]
     run_cmd(flags + mvn_args)