Snapshots updating workflow. (#219)

* Snapshots updating workflow.

* Testing workflow in branch.

* Fix python version.

* Testing UI changes.

* Updating snapshots.

* Ussing latest version of action.

* Updating snapshots.

* Revert "Testing workflow in branch."

This reverts commit 363ef70.

* Add cache.

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

.github/workflows/snapshot.yaml

@@ -0,0 +1,38 @@
+name: Snapshot Update
+on: workflow_dispatch
+
+jobs:
+  snapshotUpdate:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: fregante/setup-git-user@v2
+      - name: Install Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.10"
+      - name: Get pip cache dir
+        id: pipCache
+        run: echo "dir=$(pip cache dir)" >> $GITHUB_OUTPUT
+      - name: Cache pip modules
+        uses: actions/cache@v3
+        with:
+          path: ${{ steps.pipCache.outputs.dir }}
+          key: ${{ runner.os }}-build-cache-pip-python-3.10-octoprint-1.9
+      - name: Install OctoPrint
+        run: pip install octoprint~=1.9.0
+      - name: Install OctoRelay
+        run: pip install -e .
+      - name: Prepare testing environment
+        run: pip install coverage pylint snapshottest
+      - name: Remove snapshots
+        run: rm tests/snapshots/snap*
+      - name: Make new snapshots
+        working-directory: tests
+        run: python -m coverage run -m unittest test*.py
+      - name: Commit changes
+        run: |
+          git add tests/snapshots
+          git commit -m "Updating snapshots."
+      - name: Push changes
+        run: git push