reconfigure minify-map-json action

- update yml by bringing shell script into the main action yml
- add shebang to shell script file in case this doesn't work and we need it still

.github/scripts/minify-map-json.sh

@@ -1,3 +1,4 @@
+#!/usr/bin/env bash
 sudo npm install -g mapshaper
 mapshaper ./boundaries.geo.json snap -clean -o force precision=0.0001 format=geojson ./boundaries.geo.json
 sudo npm install -g topojson-server

.github/workflows/minify-map-json.yml

@@ -14,10 +14,23 @@ jobs:
         with:
           fetch-depth: 0
       - name: Update TopoJSON boundaries
-        run: ./.github/scripts/minify-map-json.sh
-  merge:
+        run: |
+          sudo npm install -g mapshaper
+          mapshaper ./boundaries.geo.json snap -clean -o force precision=0.0001 format=geojson ./boundaries.geo.json
+  process:
     needs: prepare
     runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Update TopoJSON boundaries
+        run: |
+          sudo npm install -g topojson-server
+          geo2topo ./boundaries.geo.json -q 50000 > ./website/data/boundaries.topo.json
+  merge:
+    needs: process
+    runs-on: ubuntu-latest
     steps:
       - name: Merge CSV to TopoJSON
         run: |