- Updated `third_party/utf8_range` to 25.1 to be aligned with other protobuf (protobuf, upb, and utf8_range need to be updated at the same time as they're in the same github repo)
- Added a workaround to `extract_metadata_from_bazel_xml.py` to handle `utf8_range` migration. It used to be `@utf8_range//:utf8_range` and it will be `@com_google_protobuf//third_party/utf8_range:utf8_range` from the next Protobuf release. So the script needs this hack to support both.
Closes#35798
PiperOrigin-RevId: 603822623
This commit upgrades gRPC to protobuf v25.0 and makes some fixes to
account for upb changes. One major change is that upb has been merged
into the protobuf repo, so we can now drop the separate `@upb`
dependency. Another is that `.upb.c` files no longer exist and there are
new `.upb_minitable.h` and `.upb_minitable.c` files. The longer
filenames exceeded a Windows restriction, so to work around that I
renamed the `upb-generated` directory to just `upb-gen`, and likewise
for `upbdefs-generated`.
This is a prerequisite for upgrading to protobuf 22.x
(upb and protobuf now depend on utf8_range)
Currently utf8_range isn't referenced by anything, but it's better to
bring the subtree in advance to make the protobuf upgrade PR smaller.