Keep the Test Font in the Flatpak Test Asset

The Flatpak unit-test leg prunes resources/ down to profiles, printers
and images before shipping the build tree to the test job, so the
bundled font the text-import tests vectorize never reached the sandbox.
Keep resources/fonts, trimmed to the one Regular face those tests read.

.github/workflows/build_all.yml

@@ -466,13 +466,16 @@ jobs:
         # the bounds checks are compiled in, so a stripped exe still catches them.
         find "$d/build_flatpak/tests" -type f -perm -u+x -exec strip --strip-unneeded {} + 2>/dev/null || true
         # At runtime the tests read tests/ (TEST_DATA_DIR), scripts/, and under
-        # resources/ the shipped profiles (PROFILES_DIR), the printers/ maps, and
-        # the icon SVGs (NativeCommands icon names are checked against them).
+        # resources/ the shipped profiles (PROFILES_DIR), the printers/ maps, the
+        # icon SVGs (NativeCommands icon names are checked against them), and the
+        # one font the text-import tests vectorize.
         find "$d" -mindepth 1 -maxdepth 1 -type d \
           ! -name tests ! -name build_flatpak ! -name scripts ! -name resources -exec rm -rf {} +
-        find "$d/resources" -mindepth 1 -maxdepth 1 ! -name profiles ! -name printers ! -name images -exec rm -rf {} +
+        find "$d/resources" -mindepth 1 -maxdepth 1 \
+          ! -name profiles ! -name printers ! -name images ! -name fonts -exec rm -rf {} +
         # Only the SVGs are read; the png/ico/icns/gif assets are ~35MB of dead weight.
         find "$d/resources/images" -mindepth 1 -maxdepth 1 ! -name '*.svg' -exec rm -rf {} + 2>/dev/null || true
+        find "$d/resources/fonts" -mindepth 1 -maxdepth 1 ! -name HarmonyOS_Sans_SC_Regular.ttf -exec rm -rf {} +
         tar -cf flatpak-test-asset.tar flatpak_app "$d"
     - name: Upload flatpak test asset
       uses: actions/upload-artifact@v7