Changed the maven URL to use https when building dist artifacts

protoc-artifacts/build-zip.sh

@@ -100,7 +100,7 @@ for((i=0;i<${#FILE_NAMES[@]};i+=2));do
     BINARY="$TARGET"
   fi
   BINARY_NAME=${FILE_NAMES[$(($i+1))]}
-  BINARY_URL=http://repo1.maven.org/maven2/com/google/protobuf/$TARGET/${VERSION_NUMBER}/$TARGET-${VERSION_NUMBER}-${BINARY_NAME}
+  BINARY_URL=https://repo1.maven.org/maven2/com/google/protobuf/$TARGET/${VERSION_NUMBER}/$TARGET-${VERSION_NUMBER}-${BINARY_NAME}
   if ! wget ${BINARY_URL} -O ${DIR}/bin/$BINARY &> /dev/null; then
     echo "[ERROR] Failed to download ${BINARY_URL}" >&2
     echo "[ERROR] Skipped $TARGET-${VERSION_NAME}-${ZIP_NAME}" >&2