fixed a typo on the change log

mm2 · mm2 · commit dc8c7ee1c73a · 2023-02-21T13:57:56.000+01:00
I didn't add this change to change log though, to avoid infinite recursion.
Thanks to Pierre Labastie for reporting this typo!
diff --git a/ChangeLog b/ChangeLog
@@ -1,5 +1,5 @@
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-2.15 Mainenance release
+2.15 Maintenance release
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 New MESON build system, many thanks to amispark and Lovell Fuller for bringing this.       
 Fixed a bug that caused memory corruption on colord
