Updated dependencies (#4466)

Changed forge to 31.2.31 and also marked it as required version.
Changed JEI to 6.0.2.12 for dev usage.

gradle.properties

@@ -10,13 +10,13 @@ artifact_basename=appliedenergistics2
 #########################################################
 minecraft_release=1.15
 minecraft_version=1.15.2
-mcp_mappings=20200701-1.15.1
-forge_version=31.2.20
+mcp_mappings=20200715-1.15.1
+forge_version=31.2.31
 
 #########################################################
 # Provided APIs                                         #
 #########################################################
-jei_version=6.0.0.4
+jei_version=6.0.2.12
 top_version=2.0.4-5
 hwyla_version=1.10.8-B72_1.15.2
 ctm_version=MC1.15.2-1.1.0.9

src/main/resources/META-INF/mods.toml

@@ -16,7 +16,7 @@ description="A Mod about Matter, Energy and using them to conquer the world.."
 [[dependencies.appliedenergistics2]]
     modId="forge"
     mandatory=true
-    versionRange="[31.0.0,)"
+    versionRange="[31.2.31,32.0.0)"
     ordering="NONE"
     side="BOTH"