[2.7-branch] ci: backports failing on clang workflow

[cfriedt]

Describe the bug At some point there was a change that broke the clang workflow for 2.7-branch. It has not been a high priority. However, there are backports that cannot be merged until CI is green.

From what I can tell, the clang workflow simply times-out whenever it is run.

Please also mention any information which could help others to understand the problem you're facing:

• What target platform are you using? CI
• What have you tried to diagnose or workaround this issue?
• Is this a regression? Yes, but it was not a code commit that caused it. Something changed with the platform where the clang workflow runs

To Reproduce Observe failing jobs in #80615 #74140 #74122

Expected behavior CI should be green for the above backport PRs.

Impact We shouldn't have CI failing. It's "kind of a big deal", but since LTSv2 is approaching EOL, it is not a high priority.

We should fix it before cutting the final LTSv2 release.

Logs and console output See failing jobs in #80615 #74140 #74122

Environment (please complete the following information):

• OS: Linux
• Toolchain: Zephyr SDK
• Commit SHA: 6477a75db3b1944c83eaf2e95170268a985547ff

Additional context

[de-nordic]

@cfriedt Thanks for raising the issue.

[cfriedt]

@stephanosio or @nashif - can you take a look? I haven't been able to fix it in the bit of time that I've had to look at it.