Update theia docker image package.json

... so it matches more closely with 'upstream' version of
this.

concourse/pipeline.yml

@@ -1299,7 +1299,6 @@ jobs:
       trigger: true
       passed:
       - build-fatjars
-  
   - task: build-spring-boot-atom-package
     params:
       package_name: atom-spring-boot

concourse/theia-docker-image/package.json

@@ -96,9 +96,11 @@
         "vscode-java-dependency-viewer": "https://github.com/microsoft/vscode-java-dependency/releases/download/0.6.0/vscode-java-dependency-0.6.0.vsix"
     },
     "resolutions": {
+        "vscode-json-languageserver": "1.2.2",
         "vscode-languageserver-protocol": "3.15.0-next.9",
         "vscode-languageserver-types": "3.15.0-next.5",
-        "**/vscode-json-languageserver/**/vscode-languageserver": "6.0.0-next.1"
+        "**/vscode-json-languageserver/**/vscode-languageserver": "6.0.0-next.1",
+        "**/moment": "2.24.0"
     },
     "devDependencies": {
         "@theia/cli": "latest"