chore(deps): update dependency protobuf to v26

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
protobuf	bazel_dep	major	21.7 -> 26.0.bcr.1

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[avdv]

This fails to build on Windows with undefined symbols while linking. See https://tweag.buildbuddy.io/invocation/58fd3f5d-b7dc-4f05-80b5-77b8ce1b5767

@protobuf~26.0.bcr.1//:protoc
No results
ERROR: non zero exit: local spawn failed for CppLink
ld.lld: error: undefined symbol: __start_pb_defaults

>>> referenced by libprotobuf_lite.a(generated_message_util.o):(.refptr.__start_pb_defaults)



ld.lld: error: undefined symbol: __stop_pb_defaults

>>> referenced by libprotobuf_lite.a(generated_message_util.o):(.refptr.__stop_pb_defaults)



ld.lld: error: undefined symbol: absl::lts_20230802::synchronization_internal::Win32Waiter::Poke()

>>> referenced by libsynchronization.a(per_thread_sem.o):(AbslInternalPerThreadSemPoke_lts_20230802)



ld.lld: error: undefined symbol: absl::lts_20230802::synchronization_internal::Win32Waiter::Win32Waiter()

>>> referenced by libsynchronization.a(per_thread_sem.o):(AbslInternalPerThreadSemInit_lts_20230802)



ld.lld: error: undefined symbol: absl::lts_20230802::synchronization_internal::Win32Waiter::Post()

>>> referenced by libsynchronization.a(per_thread_sem.o):(AbslInternalPerThreadSemPost_lts_20230802)



ld.lld: error: undefined symbol: absl::lts_20230802::synchronization_internal::Win32Waiter::Wait(absl::lts_20230802::synchronization_internal::KernelTimeout)

>>> referenced by libsynchronization.a(per_thread_sem.o):(AbslInternalPerThreadSemWait_lts_20230802)