Fix lint CI: install only dev tools, skip bot dependencies

gssapi (via paramiko[all]) needs libkrb5-dev which isn't on the runner.
Lint only needs ruff and ty, so use --only-group dev --no-install-project.

Author: Nachtalb

.github/workflows/lint.yml

@@ -19,8 +19,8 @@ jobs:
       - name: Set up Python
         run: uv python install 3.11
 
-      - name: Install dependencies
-        run: uv sync --group dev
+      - name: Install lint tools
+        run: uv sync --only-group dev --no-install-project
 
       - name: Ruff check
         run: uv run ruff check reverse_image_search_bot/