fix(ci): update python version matrix in LTS image tagging to match publish workflow

The tag-lts-images job only used python 3.12 but LTS releases span both
python 3.12 and 3.13. Updated the matrix to include both versions so
LTS tags are applied to all published images.

Author: esune

.github/workflows/tag-recreate-lts.yml

@@ -232,7 +232,7 @@ jobs:
       packages: write
     strategy:
       matrix:
-        python-version: ["3.12"]
+        python-version: ["3.12", "3.13"]
         image-name: ["acapy-agent", "acapy-agent-bbs"]
 
     steps: