Add do-not-use warning to README

[AlexanderLanin]

No description provided.

[github-actions]

License Check Results

🚀 The license check preparation job ran successfully.

Status: ⚠️ Needs Review

Click to expand output

2025/03/12 09:05:40 Downloading https://releases.bazel.build/7.4.0/release/bazel-7.4.0-linux-x86_64...
Extracting Bazel installation...
Starting local Bazel server and connecting to it...
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
WARNING: For repository 'googletest', the root module requires module version googletest@1.14.0, but got googletest@1.14.0.bcr.1 in the resolved dependency graph.
Loading: 
Loading: 0 packages loaded
WARNING: Target pattern parsing failed.
ERROR: Skipping '//docs:license.check.python': no such target '//docs:license.check.python': target 'license.check.python' not declared in package 'docs' defined by /home/runner/work/module_template/module_template/docs/BUILD
ERROR: no such target '//docs:license.check.python': target 'license.check.python' not declared in package 'docs' defined by /home/runner/work/module_template/module_template/docs/BUILD
INFO: Elapsed time: 8.058s
INFO: 0 processes.
ERROR: Build did NOT complete successfully
ERROR: Build failed. Not running target

[AlexanderLanin]

@MaximilianSoerenPollak we need your blessing ⚔️

[AlexanderLanin]

We forgot to merge this in time. By now it's obsolete.