[BUILD] Add rules_cc load statements

[keith]

With the next major version of bazel this becomes required. This change
was automated with buildifier -r . --lint=fix

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.95%. Comparing base (767ef30) to head (813dc8f).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3697   +/-   ##
=======================================
  Coverage   89.95%   89.95%           
=======================================
  Files         225      225           
  Lines        7273     7273           
=======================================
  Hits         6542     6542           
  Misses        731      731           

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[lalitb]

Thanks. Not a bagel expert, but trusting the buildifier gods on this one :)
Seems the CI failure is not related to the PR, something related to vcpkg. cc @ThomsonTan

[lalitb]

Approved earlier, but noticed another CI failure (Cannot load '@@rules_cc//cc:cc_library.bzl': no such file).
Likely missing rules_cc declaration in WORKSPACE or MODULE.bazel — seems Bazel 7 now requires it explicitly.

make command: make -k -j $(nproc)
CMAKE_OPTIONS: -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_STANDARD=17 -DCMAKE_CXX_STANDARD_REQUIRED=ON -DCMAKE_CXX_EXTENSIONS=OFF
2025/10/16 00:59:13 Downloading https://releases.bazel.build/7.1.1/release/bazel-7.1.1-linux-x86_64...
Starting local Bazel server and connecting to it...
Computing main repo mapping: 
WARNING: Target pattern parsing failed.
ERROR: Skipping '//exporters/otlp:with_otlp_grpc_credential_preview': error loading package 'exporters/otlp': cannot load '@@rules_cc//cc:cc_library.bzl': no such file
ERROR: //exporters/otlp:with_otlp_grpc_credential_preview :: Error loading option //exporters/otlp:with_otlp_grpc_credential_preview: error loading package 'exporters/otlp': cannot load '@@rules_cc//cc:cc_library.bzl': no such file
Error: Process completed with exit code 2.

[keith]

thanks, wdyt about dropping WORKSPACE support now? #3699

I can fix it here but it might be a reasonable time to drop anyways