Disable known failures in distro CI

Author: lgoettgens

.github/workflows/CI-distro.yml

@@ -59,8 +59,11 @@ jobs:
         exclude:
           - gap-package: 'atlasrep'                   # random gc-related segfaults during testing
           - gap-package: 'autodoc'                    # tries and fails to build its own documentation, inside the (partially write protected) artifacts dir
+          - gap-package: 'crystcat'                   # known test failures, will be fixed by https://github.com/gap-packages/crystcat/pull/14
+          - gap-package: 'ctbllib'                    # random gc-related segfaults during testing
           - gap-package: 'example'                    # no jll
           - gap-package: 'examplesforhomalg'          # `Error, found no GAP executable in PATH`
+          - gap-package: 'groupoids'                  # `Segmentation fault (Invalid permissions for mapped object)` after passing all tests
           - gap-package: 'hap'                        # `polymake command not found. Please set POLYMAKE_COMMAND by hand`
           - gap-package: 'hapcryst'                   # `polymake command not found. Please set POLYMAKE_COMMAND by hand`
           - gap-package: 'help'                       # test failure in HeLP-4.0/tst/yes_4ti2.tst:39
@@ -71,7 +74,10 @@ jobs:
           - gap-package: 'polymaking'                 # `polymake command not found. Please set POLYMAKE_COMMAND by hand`
           - gap-package: 'profiling'                  # segfaults during testing
           - gap-package: 'ringsforhomalg'             # `Error, found no GAP executable in PATH`
+          - gap-package: 'semigroups'                 # `Segmentation fault (Invalid permissions for mapped object)` after passing all tests
+          - gap-package: 'wedderga'                   # known test failures, will be fixed by https://github.com/gap-packages/wedderga/pull/110
           - gap-package: 'xgap'                       # no jll
+          - gap-package: 'xmod'                       # `Segmentation fault (Invalid permissions for mapped object)` after passing all tests
 
     steps:
       - uses: actions/checkout@v5