provide last working infrastructure (IU-2021.2.3) before 2021.3 breaking changes

Author: Haehnchen

.github/workflows/gradle.yml

@@ -39,12 +39,12 @@ jobs:
     - name: setting env vars
       run: echo "Main version ${ORG_GRADLE_PROJECT_ideaVersion}"
       env:
-        ORG_GRADLE_PROJECT_ideaVersion: "IU-2021.3"
-        ORG_GRADLE_PROJECT_phpPluginVersion: "213.5744.279"
-        ORG_GRADLE_PROJECT_twigPluginVersion: "213.5744.224"
+        ORG_GRADLE_PROJECT_ideaVersion: "IU-2021.2.3"
+        ORG_GRADLE_PROJECT_phpPluginVersion: "212.5457.49"
+        ORG_GRADLE_PROJECT_twigPluginVersion: "212.5457.16"
         ORG_GRADLE_PROJECT_toolboxPluginVersion: "0.4.6"
         ORG_GRADLE_PROJECT_annotationPluginVersion: "5.3"
-        ORG_GRADLE_PROJECT_dqlPluginVersion: "213.5744.125"
+        ORG_GRADLE_PROJECT_dqlPluginVersion: "212.4746.52"
 
     - name: Grant execute permission for gradlew
       run: chmod +x gradlew

gradle.properties

@@ -1,6 +1,6 @@
-ideaVersion = IU-2021.3
-phpPluginVersion = 213.5744.279
-twigPluginVersion = 213.5744.224
-dqlPluginVersion = 213.5744.125
+ideaVersion = IU-2021.2.3
+phpPluginVersion = 212.5457.49
+twigPluginVersion = 212.5457.16
+dqlPluginVersion = 212.4746.52
 toolboxPluginVersion = 0.4.6
 annotationPluginVersion = 5.3