Remove Julia 1.6, add Julia 1.10 to CI

.gitlab-ci.yml

@@ -34,13 +34,6 @@ before_script:
         using Printf
         @printf "Test coverage %.2f%%\n" 100c / t'
 
-Julia 1.6:
-  image: docker.km3net.de/base/julia:1.6
-  stage: test
-  extends:
-    - .script
-    - .coverage
-
 Julia 1.8:
   image: docker.km3net.de/base/julia:1.8
   stage: test
@@ -55,6 +48,12 @@ Julia 1.9:
     - .script
     - .coverage
 
+Julia 1.10:
+  image: docker.km3net.de/base/julia:1.10
+  stage: test
+  extends:
+    - .script
+    - .coverage
 
 docs:
   image: docker.km3net.de/base/julia:1.9-tex