Bazel module support

[mmorel-35]

Description

This setup bazel module support. It follows Bzlmod Migration Guide

Notice:

• I had to disable --copt="-Werror" and push use of c++17

Closes #136

[mmorel-35]

Notice, this is pointing to skywalking-data-collect-protocol last commit, to confirm its bazel mode migration and will be working properly when its next tag is published

See https://bazel.build/rules/lib/globals/module#git_override for more

[mmorel-35]

/cc @wbpcode
I believe it's for you ;)

[Copilot]

Pull Request Overview

This PR migrates the project from Bazel WORKSPACE to Bzlmod module system, following the official Bzlmod Migration Guide. The changes update dependency management, version pins, and build configuration to work with the new module system.

• Adds MODULE.bazel file with module dependencies using bazel_dep declarations
• Updates dependency versions across all external libraries (grpc, protobuf, googletest, etc.)
• Modifies build configuration to enable bzlmod and enforce C++17 standard

Reviewed Changes

Copilot reviewed 10 out of 11 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
MODULE.bazel	New module file defining dependencies with bazel_dep and git_override
WORKSPACE.bzlmod	New workspace file for bzlmod compatibility
.bazelrc	Enables bzlmod and enforces C++17 standard across platforms
.bazelversion	Updates Bazel version from 4.0.0 to 7.6.1
bazel/repositories.bzl	Updates dependency versions and URLs to match MODULE.bazel
WORKSPACE	Removes rules_proto_toolchains and adds protobuf_deps
cpp2sky/BUILD	Updates protobuf import to use new location
bazel/fmtlib.BUILD	Renames target from "fmtlib" to "fmt"
bazel/spdlog.BUILD	Updates dependency reference to match renamed fmt target
test/tracing_context_test.cc	Updates include path for protocol buffer headers

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[mmorel-35]

I believe the jobs don’t start because github doesn’t supports Ubuntu 20.04 anymore, I opened #136

I'll have to adapt this PR once the other is merged.

[mmorel-35]

@wbpcode ,
Let's see if it's better with bazel 7.6.1 ?

[mmorel-35]

@wbpcode ,
This getting better, I updated Docker images and provided a cache for bazel so it's going to build faster

[mmorel-35]

@wbpcode,

I restored the sudo calls for cmake, we shall be closer to success with that change.

[wbpcode]

Thanks for the contribution. LGTM. Hope CI is happy.

[mmorel-35]

@wbpcode ,

I believe this was related to c++ version being 11 instead of 17.
As the build is quite long I separated bazel and cmake builds so they can have a dedicated workflow and caching system

[mmorel-35]

@wbpcode,
Let's hope there is nothing left ;)

[mmorel-35]

@wbpcode ,
I believe it !

[wbpcode]

🙏

[mmorel-35]

@wbpcode ,

Working locally, let's hope that's final round on this.

[mmorel-35]

@wbpcode ,
I remove the unspported --ignore-errors