Merge pull request #21686 from guerler/version-26.0.rc1

[26.0] Update version to 26.0.rc1

Author: ahmedhamidawan

lib/galaxy/version.py

@@ -1,3 +1,3 @@
 VERSION_MAJOR = "26.0"
-VERSION_MINOR = "dev0"
+VERSION_MINOR = "rc1"
 VERSION = VERSION_MAJOR + (f".{VERSION_MINOR}" if VERSION_MINOR else "")