[#3] Add github workflow dispatch for generating maps (#7)

.github/workflows/workflow-dispatch.yml

@@ -0,0 +1,48 @@
+name: Generate Maps
+
+on:
+  workflow_dispatch:
+
+jobs:
+  generate-maps:
+    runs-on: macos-latest-large
+    steps:
+      - name: Check out Git repository
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 11
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 11
+          cache: maven
+
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+          cache: pip
+
+      - name : Install python dependencies
+        run: pip install -r requirements.txt
+
+      - name: Install Maven dependencies
+        run: mvn install -f pom.xml
+
+      - name: Package Maven project
+        run: mvn package -f pom.xml
+
+      - name: Download latest cache
+        run: python scripts/cache.py
+
+      - name: Generate maps
+        run: java -jar ./osrs-wiki-maps/target/osrs-wiki-maps-*-SNAPSHOT-shaded.jar
+
+      - name: Stitch maps
+        run: python scripts/stitch.py
+
+      - name: Upload Output
+        uses: actions/upload-artifact@v3
+        with:
+          name: out-${{ github.run_id }}-${{ github.run_attempt }}
+          path: out/