i18n: Update translation templates from Weblate

Translation template (*.pot) files were updated last time in year
2023. As a result msgmerge run during building DNF5 removed all newly
added translated messages from message cataloges because the new
messages were missing from the template files.

This patch fixes it by copying the templates together with messages
catalogs from Weblate on every DNF5 release.

Resolves: #1744

.github/actions/weblate-pull-translations/action.yml

@@ -1,4 +1,4 @@
-name: Retrieve *.po files from weblate repository
+name: Retrieve *.po and *.pot files from weblate repository
 
 runs:
   using: "composite"
@@ -9,7 +9,7 @@ runs:
         repository: ${{ github.repository }}-l10n
         path: .l10n
 
-    - name: Copy *.po files from weblate repository
+    - name: Copy *.po and *.pot files from weblate repository
       shell: bash
       run: |
         pushd .l10n
@@ -17,9 +17,9 @@ runs:
           source_path=""
           if [ -f "${component}/PATH" ]; then
             read -r source_path < "${component}/PATH"
-            for po in "${component}"/*.po; do
-              if [ -f "$po" ]; then
-                cp "${po}" "../${source_path}/"
+            for file in "${component}"/*.{po,pot}; do
+              if [ -f "$file" ]; then
+                cp "${file}" "../${source_path}/"
               fi
             done
             git -C .. add "${source_path}"
@@ -32,7 +32,7 @@ runs:
       run: |
         rm -rf .l10n
 
-    - name: Commit *.po files
+    - name: Commit *.po and *.pot files
       shell: bash
       run: |
         # only commit if there is any change in translations