ci: add concurrency groups to all pr triggered workflows

Add concurrency groups to all pr triggered workflows.

```${{ github.workflow }}-${{ github.event_name }}-${{ github.event_name == 'pull_request' && github.ref || github.run_id }}```

In case of PR trigger the above translates to:
- ```'Zephyr-pull_request-refs/pull/{pr_number}/merge'```

In any other case it translates to:
- ```'Zephyr-workflow_dispatch-62137'```
- ```'Zephyr-push-62138'```

This allows to group and cancel only PR runs that can clog the CI and skips the dispatched or pushed workflows.

Signed-off-by: Mateusz Redzynia <mateuszx.redzynia@intel.com>

Author: redzynix

.github/workflows/build_all.yml

@@ -11,6 +11,11 @@ on: [pull_request, workflow_dispatch, workflow_call]
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.event_name == 'pull_request' && github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
 
   stub-build:

.github/workflows/codeql.yml

@@ -9,9 +9,9 @@ on:
 permissions:
   contents: read
 
-# Specifies group name that stops previous workflows if the name matches
+# Group workflows together to cancel outdated runs
 concurrency:
-  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.ref }}
   cancel-in-progress: true
 
 jobs:

.github/workflows/codestyle.yml

@@ -17,6 +17,11 @@ on: [pull_request, workflow_call, workflow_dispatch]
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.event_name == 'pull_request' && github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   yamllint:
     runs-on: ubuntu-latest

.github/workflows/ipc_fuzzer.yml

@@ -25,6 +25,11 @@ on:
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.event_name == 'pull_request' && github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
 
   simple-IPC-fuzz_sh:

.github/workflows/llext.yml

@@ -14,6 +14,11 @@ defaults:
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.event_name == 'pull_request' && github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-24.04

.github/workflows/pull-request.yml

@@ -34,6 +34,11 @@ on:
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.event_name == 'pull_request' && github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
 
   doxygen:

.github/workflows/repro-build.yml

@@ -17,6 +17,11 @@ on: [pull_request, workflow_dispatch, workflow_call]
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.event_name == 'pull_request' && github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   main:
     runs-on: ubuntu-24.04

.github/workflows/rimage.yml

@@ -25,6 +25,11 @@ on:
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.event_name == 'pull_request' && github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
 
   # Basic build test

.github/workflows/sof-docs.yml

@@ -20,6 +20,11 @@ on:
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.event_name == 'pull_request' && github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
 
   # This is unfortunately a mix of sof-docs/.github/ + pull-request.yml#doxygen

.github/workflows/sparse-zephyr.yml

@@ -14,6 +14,11 @@ defaults:
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.event_name == 'pull_request' && github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   # As of sparse commit ce1a6720f69e / Sept 2022, the exit status of
   # sparse.c is an unusable mess and always zero in practice. Moreover