chore(deps): update dependency protobuf to v33.6

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
protobuf	bazel_dep	minor	33.5 → 33.6

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Release Notes

protocolbuffers/protobuf (protobuf)

v33.6: Protocol Buffers v33.6

Announcements

• Protobuf News may include additional announcements or pre-announcements for upcoming changes.

C++

• Add cc_proto_library for MessageSet in //src/google/protobuf/bridge (56be356)

Java

• Avoid toBigIntegerExact in JsonFormat to avoid degenerate parse behavior in the face of large exponents. (e515811)

PHP

• Check that readRaw does not accept negative length value. (60e93d2)
• Php: Fix that recursion limit is not enforced. (c8e9b27)
• Chore(php): fix php 8.5 deprecations 33.x (#​25714) (a594f97)
• Bump version dependencies on phpunit/phpunit to ">=10.5.62 <11.0.0" (7c0d2a2)

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