Fixing the node.js dependencies, so the VSCode plugin can be built ag…

…ain (#5738)

Fixing node.js dependencies as:
```bash
enso/tools/enso4igv$ mvn clean install -Pvsix
```
was broken. Making sure the VSIX build is part of the _actions workflow_.

# Important Notes
To reproduce/verify remove `enso/tools/enso4igv/node_modules` first and try to build.

.github/workflows/enso4igv.yml

@@ -39,3 +39,9 @@ jobs:
         with:
           name: Enso IGV Plugin
           path: tools/enso4igv/target/*.nbm
+
+      - name: Install Node.js modules
+        run: mvn -B -Pvsix npm:install --file tools/enso4igv/pom.xml
+
+      - name: Build VSCode Extension
+        run: mvn -B -Pvsix npm:run@vsix --file tools/enso4igv/pom.xml

tools/enso4igv/package.json

@@ -77,19 +77,19 @@
     "lint": "tslint -p ./"
   },
   "dependencies": {
-    "copy-webpack-plugin": "^10.2.4",
-    "decompress": "4.2.1",
-    "maven": "^5.0.0"
+    "copy-webpack-plugin": "=10.2.4",
+    "decompress": "=4.2.1",
+    "maven": "=5.0.0"
   },
   "devDependencies": {
     "@types/vscode": "=1.49.0",
-    "@types/xml2js": "^0.4.8",
-    "ts-loader": "^6.2.1",
-    "tslint": "^6.1.0",
-    "typescript": "^3.9.10",
-    "vsce": "^2.6.4",
-    "webpack": "^5.40.0",
-    "webpack-cli": "^4.7.2"
+    "@types/xml2js": "=0.4.11",
+    "ts-loader": "=9.4.2",
+    "tslint": "=6.1.3",
+    "typescript": "=4.9.5",
+    "vsce": "=2.15.0",
+    "webpack": "=5.75.0",
+    "webpack-cli": "=5.0.1"
   },
   "extensionDependencies": [
     "asf.apache-netbeans-java"