fixup! Add a GitHub workflow to monitor component updates

Let's stop looking for mimalloc updates: As of
#6231, Git for Windows does
not use mimalloc anymore (because the system allocator has sprouted
comparable performance in the meantime).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Author: dscho

.github/workflows/monitor-components.yml

@@ -77,9 +77,6 @@ jobs:
             feed: https://github.com/msys2/MINGW-packages/commits/master/mingw-w64-llvm.atom
           - label: innosetup
             feed: https://github.com/jrsoftware/issrc/tags.atom
-          - label: mimalloc
-            feed: https://github.com/microsoft/mimalloc/tags.atom
-            title-pattern: ^(?!v1\.|v3\.[01]\.)
       fail-fast: false
     steps:
       - uses: git-for-windows/rss-to-issues@v0