sc-66351 auto onboard large runenrs (#774)

**Context:**
This PR fixes an issue introduced as part of the previous pr #769 .

This issue was identified while trying to replicate an RC branch and
testing the workflows as part of #773.

**Description of the Change:**
- Added extra echo statements to see clearly the outcome of the workflow
if logic
- Removes quotes around the regex expression as that was making all
evaluations of the logic to go false.
- This issue did not arise in my previous testing but turned out to be a
mismatch in shell configuration between myself locally and github
actions. I was able to reproduce the bug locally and see that this
worked.

#773 worked as expected with the changes introduced in this PR.

Links:
-
https://github.com/PennyLaneAI/pennylane-lightning/actions/runs/9616650952/job/26526641408?pr=773#step:2:14
-
https://github.com/PennyLaneAI/pennylane-lightning/actions/runs/9616650967/job/26526641639?pr=773#step:2:14

**Benefits:**
Auto on-boarding tested and working with this fix.

**Possible Drawbacks:**

**Related GitHub Issues:**

---------

Co-authored-by: ringo-but-quantum <[email protected]>
Co-authored-by: Vincent Michaud-Rioux <[email protected]>
Co-authored-by: Ali Asadi <[email protected]>

.github/CHANGELOG.md

@@ -98,6 +98,9 @@
 
 ### Bug fixes
 
+* Fix regex matching issue with auto on-boarding of release candidate branch to using the large runner queue.
+  [(#774)](https://github.com/PennyLaneAI/pennylane-lightning/pull/774)
+
 * Fix random CI failures for `lightning.tensor` python unit tests and ignore `lightning_tensor` paths.
   [(#761)](https://github.com/PennyLaneAI/pennylane-lightning/pull/761)
 

.github/workflows/determine-workflow-runner.yml

@@ -41,6 +41,9 @@ jobs:
           RC_BRANCH_FORMAT_REGEX: v[0-9]+\.[0-9]+\.[0-9]+-rc[0-9]?
           REPO_FULL_NAME: PennyLaneAI/pennylane-lightning
         run: |
-          if [[ '${{ contains(github.event.pull_request.labels.*.name, 'urgent') }}' == 'true' || ('${{ github.event.pull_request.head.repo.full_name }}' == "$REPO_FULL_NAME" && "${{ github.event.pull_request.head.ref }}" =~ "$RC_BRANCH_FORMAT_REGEX") ]]; then
+          if [[ '${{ contains(github.event.pull_request.labels.*.name, 'urgent') }}' == 'true' || ('${{ github.event.pull_request.head.repo.full_name }}' == "$REPO_FULL_NAME" && '${{ github.event.pull_request.head.ref }}' =~ $RC_BRANCH_FORMAT_REGEX) ]]; then
+            echo "This job requires usage of the large runner group '$LARGE_RUNNER_GROUP_NAME'";
             echo "runner_group=$LARGE_RUNNER_GROUP_NAME" >> $GITHUB_OUTPUT
+          else
+            echo "This job does not require usage of large runners ...";
           fi

pennylane_lightning/core/_version.py

@@ -16,4 +16,4 @@
    Version number (major.minor.patch[-label])
 """
 
-__version__ = "0.37.0-dev45"
+__version__ = "0.37.0-dev46"