[cherry-pick] Bump the python group in /tests with 2 updates (#5926)

Bump the python group in /tests with 2 updates (#5908)

Bumps the python group in /tests with 2 updates: [google-auth](https://github.com/googleapis/google-auth-library-python) and [protobuf](https://github.com/protocolbuffers/protobuf).


Updates `google-auth` from 2.30.0 to 2.31.0
- [Release notes](https://github.com/googleapis/google-auth-library-python/releases)
- [Changelog](https://github.com/googleapis/google-auth-library-python/blob/main/CHANGELOG.md)
- [Commits](googleapis/google-auth-library-python@v2.30.0...v2.31.0)

Updates `protobuf` from 5.27.1 to 5.27.2
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/protobuf_release.bzl)
- [Commits](protocolbuffers/protobuf@v5.27.1...v5.27.2)

---
updated-dependencies:
- dependency-name: google-auth
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: python
- dependency-name: protobuf
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: python
...

Signed-off-by: dependabot[bot] <[email protected]>

tests/requirements.txt

@@ -215,9 +215,9 @@ forcediphttpsadapter==1.1.0 \
     --hash=sha256:0d224cf6e8e50eb788c9f5994a7afa6d389bac6dbe540b7dfd77a32590ad0153 \
     --hash=sha256:5e7662ece61735585332d09b87d94fffe4752469d5c0d3feff48746e5d70744b
     # via -r requirements.txt
-google-auth==2.30.0 \
-    --hash=sha256:8df7da660f62757388b8a7f249df13549b3373f24388cb5d2f1dd91cc18180b5 \
-    --hash=sha256:ab630a1320f6720909ad76a7dbdb6841cdf5c66b328d690027e4867bdfb16688
+google-auth==2.31.0 \
+    --hash=sha256:042c4702efa9f7d3c48d3a69341c209381b125faa6dbf3ebe56bc7e40ae05c23 \
+    --hash=sha256:87805c36970047247c8afe614d4e3af8eceafc1ebba0c679fe75ddd1d575e871
     # via
     #   -r requirements.txt
     #   kubernetes
@@ -437,18 +437,18 @@ pluggy==1.5.0 \
     # via
     #   -r requirements.txt
     #   pytest
-protobuf==5.27.1 \
-    --hash=sha256:25236b69ab4ce1bec413fd4b68a15ef8141794427e0b4dc173e9d5d9dffc3bcd \
-    --hash=sha256:39309898b912ca6febb0084ea912e976482834f401be35840a008da12d189340 \
-    --hash=sha256:3adc15ec0ff35c5b2d0992f9345b04a540c1e73bfee3ff1643db43cc1d734333 \
-    --hash=sha256:4ac7249a1530a2ed50e24201d6630125ced04b30619262f06224616e0030b6cf \
-    --hash=sha256:4e38fc29d7df32e01a41cf118b5a968b1efd46b9c41ff515234e794011c78b17 \
-    --hash=sha256:7a97b9c5aed86b9ca289eb5148df6c208ab5bb6906930590961e08f097258107 \
-    --hash=sha256:917ed03c3eb8a2d51c3496359f5b53b4e4b7e40edfbdd3d3f34336e0eef6825a \
-    --hash=sha256:df5e5b8e39b7d1c25b186ffdf9f44f40f810bbcc9d2b71d9d3156fee5a9adf15 \
-    --hash=sha256:dfddb7537f789002cc4eb00752c92e67885badcc7005566f2c5de9d969d3282d \
-    --hash=sha256:ee52874a9e69a30271649be88ecbe69d374232e8fd0b4e4b0aaaa87f429f1631 \
-    --hash=sha256:f6abd0f69968792da7460d3c2cfa7d94fd74e1c21df321eb6345b963f9ec3d8d
+protobuf==5.27.2 \
+    --hash=sha256:0e341109c609749d501986b835f667c6e1e24531096cff9d34ae411595e26505 \
+    --hash=sha256:176c12b1f1c880bf7a76d9f7c75822b6a2bc3db2d28baa4d300e8ce4cde7409b \
+    --hash=sha256:354d84fac2b0d76062e9b3221f4abbbacdfd2a4d8af36bab0474f3a0bb30ab38 \
+    --hash=sha256:4fadd8d83e1992eed0248bc50a4a6361dc31bcccc84388c54c86e530b7f58863 \
+    --hash=sha256:54330f07e4949d09614707c48b06d1a22f8ffb5763c159efd5c0928326a91470 \
+    --hash=sha256:610e700f02469c4a997e58e328cac6f305f649826853813177e6290416e846c6 \
+    --hash=sha256:7fc3add9e6003e026da5fc9e59b131b8f22b428b991ccd53e2af8071687b4fce \
+    --hash=sha256:9e8f199bf7f97bd7ecebffcae45ebf9527603549b2b562df0fbc6d4d688f14ca \
+    --hash=sha256:a109916aaac42bff84702fb5187f3edadbc7c97fc2c99c5ff81dd15dcce0d1e5 \
+    --hash=sha256:b848dbe1d57ed7c191dfc4ea64b8b004a3f9ece4bf4d0d80a367b76df20bf36e \
+    --hash=sha256:f3ecdef226b9af856075f28227ff2c90ce3a594d092c39bee5513573f25e2714
     # via
     #   -r requirements.txt
     #   grpcio-tools