Update compile.sh to use Guava version 31.1.

This is commit 4/5 for
#14942 (comment).

Closes #14963.

PiperOrigin-RevId: 432530027

scripts/bootstrap/compile.sh

@@ -30,7 +30,7 @@ PROTO_FILES=$(find third_party/remoteapis ${GOOGLE_API_PROTOS} third_party/pprof
 LIBRARY_JARS=$(find $ADDITIONAL_JARS third_party -name '*.jar' | sort | grep -Fv JavaBuilder | grep -Fv third_party/guava/guava | grep -ve 'third_party/grpc/grpc.*jar' | grep -Fv third_party/netty_tcnative | tr "\n" " ")
 GRPC_JAVA_VERSION=1.41.0
 GRPC_LIBRARY_JARS=$(find third_party/grpc -name '*.jar' | grep -e ".*${GRPC_JAVA_VERSION}.*jar" | tr "\n" " ")
-GUAVA_VERSION=31.0.1
+GUAVA_VERSION=31.1
 GUAVA_JARS=$(find third_party/guava -name '*.jar' | grep -e ".*${GUAVA_VERSION}.*jar" | tr "\n" " ")
 LIBRARY_JARS="${LIBRARY_JARS} ${GRPC_LIBRARY_JARS} ${GUAVA_JARS}"