release: speed up pushes by 9x (#38640)

tools/release/build_release.sh

@@ -94,6 +94,7 @@ REFS=()
 for branch in ${RELEASE_BRANCH//,/ }; do
   REFS+=("$BUILD_BRANCH:$branch")
 done
-git push -f origin "${REFS[@]}"
+# uploading the larger pack is faster than spending CPU to optimize it
+git -c pack.window=0 -c pack.depth=0 -c pack.compression=0 push -f origin "${REFS[@]}"
 
 echo "[-] done T=$SECONDS"

tools/release/build_stripped.sh

@@ -83,7 +83,8 @@ fi
 
 if [ ! -z "$BRANCH" ]; then
   echo "[-] Pushing to $BRANCH T=$SECONDS"
-  git push -f origin tmp:$BRANCH
+  # uploading the larger pack is faster than spending CPU to optimize it
+  git -c pack.window=0 -c pack.depth=0 -c pack.compression=0 push -f origin tmp:$BRANCH
 fi
 
 echo "[-] done T=$SECONDS, ready at $TARGET_DIR"