ENH: Check OS and choose library name accordingly

Summary

For https://gitlab.indiscale.com/caosdb/customers/lfpb/management/-/issues/372. Actual MR is done in https://gitlab.com/caosdb/caosdb-julialib/-/merge_requests/1/diffs

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• All automated tests pass
• Reference related Issues
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For further good practices have a look at our review guidelines.

.gitlab-ci.yml

@@ -159,7 +159,11 @@ trigger_inttest:
     ## Determine the juliainttest branch...
     # ... use an f-branch if posible...
     - if echo "$CI_COMMIT_REF_NAME" | grep -c "^f-" ; then
-        JULIAINT_REF=$CI_COMMIT_REF_NAME ;
+        if curl -o /dev/null -s -w "%{http_code}" $JULIAINTTEST_BRANCHES/$CI_COMMIT_REF_NAME | grep "404"; then
+          JULIAINT_REF=dev ;
+        else
+          JULIAINT_REF=$CI_COMMIT_REF_NAME;
+        fi
       fi;
     # ... or use main if possible...
     - if [[ "$CI_COMMIT_REF_NAME" == "main" ]] ; then