ci: align blender-smoke to actions/checkout@v7 (#12) [skip ci]

Dependabot #11 bumped checkout 6->7 in the other workflows but predated blender-smoke.yml. Bump it too so all workflows use checkout@v7.

Signed-off-by: fOuttaMyPaint <TMhospitalitystrategies@gmail.com>

Author: TMHSDigital

.github/workflows/blender-smoke.yml

@@ -32,7 +32,7 @@ jobs:
           - series: "5.1"   # current stable
           - series: "4.5"   # active LTS
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Install Blender runtime libraries
         run: |