fix windows build script and add surefire args

Author: chingor13

.github/workflows/java-bigquerystorage-ci.yaml

@@ -77,7 +77,7 @@ jobs:
         distribution: temurin
         java-version: 8
     - run: java -version
-    - run: .kokoro/build.bat
+    - run: .kokoro/build.sh
       env:
         JOB_TYPE: test
   dependencies:

.kokoro/build.sh

@@ -43,6 +43,7 @@ fi
 
 case ${JOB_TYPE} in
   test)
+    echo "SUREFIRE_JVM_OPT: ${SUREFIRE_JVM_OPT}"
     retry_with_backoff 3 10 \
       mvn test \
         -B -ntp \
@@ -54,7 +55,7 @@ case ${JOB_TYPE} in
         -Dflatten.skip=true \
         -Danimal.sniffer.skip=true \
         -Dmaven.wagon.http.retryHandler.count=5 \
-        -T 1C
+        -T 1C ${SUREFIRE_JVM_OPT}
     RETURN_CODE=$?
     echo "Finished running unit tests"
     ;;