Fix release workflow: use Forgejo's upload/download-artifact fork

actions/upload-artifact@v4 and download-artifact@v4 use GitHub's newer
Artifacts-v2 protocol, which Forgejo's server explicitly refuses
("not currently supported on GHES"). Forgejo maintains its own forks
(forgejo/upload-artifact@v5, forgejo/download-artifact@v7) with that
check disabled. Also drops archive: false, an input that fork doesn't
expose - the earlier binary rename already keeps filenames distinct
through the default zip/extract round-trip.

.forgejo/workflows/release.yml

@@ -30,14 +30,14 @@ jobs:
           GITHUB_TOKEN: ""
       - run: mv target/release/carrier target/release/carrier-macos-arm64
         working-directory: carrier
-      # archive: false uploads the raw binary (not a zip) and names the
-      # artifact after the file, so this rename is what keeps the two
-      # platforms' artifacts from colliding under the same "carrier" name.
-      - uses: https://code.forgejo.org/actions/upload-artifact@v4
+      # actions/upload-artifact@v4 talks the newer Artifacts-v2 protocol,
+      # which Forgejo's server rejects ("not currently supported on GHES").
+      # forgejo/upload-artifact is Forgejo's own patched fork with that
+      # check disabled - needed on both upload and download ends.
+      - uses: https://code.forgejo.org/forgejo/upload-artifact@v5
         with:
           name: carrier-macos-arm64
           path: carrier/target/release/carrier-macos-arm64
-          archive: false
 
   linux:
     runs-on: linux-x86_64
@@ -64,11 +64,10 @@ jobs:
           GITHUB_TOKEN: ""
       - run: mv target/release/carrier target/release/carrier-linux-x86_64
         working-directory: carrier
-      - uses: https://code.forgejo.org/actions/upload-artifact@v4
+      - uses: https://code.forgejo.org/forgejo/upload-artifact@v5
         with:
           name: carrier-linux-x86_64
           path: carrier/target/release/carrier-linux-x86_64
-          archive: false
 
   # forgejo-release.sh (the engine behind actions/forgejo-release) always
   # does a blind create-then-upload of the release for the tag, with no
@@ -82,7 +81,7 @@ jobs:
     needs: [macos, linux]
     runs-on: linux-x86_64
     steps:
-      - uses: https://code.forgejo.org/actions/download-artifact@v4
+      - uses: https://code.forgejo.org/forgejo/download-artifact@v7
         with:
           path: dist/release
           merge-multiple: true