Removing 1.19, due to build failures

.gitlab-ci.yml

@@ -17,9 +17,9 @@ build_mod:
     - java -version
   script:
     - |
-      declare -a versions=("1.19.4" "1.20" "1.20.1" "1.20.2" "1.20.3" "1.20.4")
-      declare -a mappings=("1.19.4+build.2" "1.20+build.1" "1.20.1+build.10" "1.20.2+build.4" "1.20.3+build.1" "1.20.4+build.3")
-      declare -a fabric_versions=("0.87.2+1.19.4" "0.83.0+1.20" "0.92.1+1.20.1" "0.91.6+1.20.2" "0.91.1+1.20.3" "0.97.0+1.20.4")
+      declare -a versions=("1.20" "1.20.1" "1.20.2" "1.20.3" "1.20.4")
+      declare -a mappings=("1.20+build.1" "1.20.1+build.10" "1.20.2+build.4" "1.20.3+build.1" "1.20.4+build.3")
+      declare -a fabric_versions=("0.83.0+1.20" "0.92.1+1.20.1" "0.91.6+1.20.2" "0.91.1+1.20.3" "0.97.0+1.20.4")
 
       for i in "${!versions[@]}"; do
         minecraft_version="${versions[$i]}"