gnu: python-isrcsubmit: Deprecate in favor of isrcsubmit.

* gnu/packages/music.scm (isrcsubmit): New variable.
(python-isrcsubmit): Deprecate variable.

Change-Id: I04709a1009a4d2e0773e1b4cea6b2bcb4a7eae5b

gnu/packages/music.scm

@@ -4266,9 +4266,9 @@ MusicBrainz database.")
     ;; 'musicbrainzngs/compat.py' is ISC licensed.
     (license (list license:bsd-2 license:isc))))
 
-(define-public python-isrcsubmit
+(define-public isrcsubmit
   (package
-    (name "python-isrcsubmit")
+    (name "isrcsubmit")
     (version "2.0.1")
     (source
      (origin
@@ -4291,6 +4291,9 @@ Standard Recording Code} (ISRCs) from audio CDs and submit them to
 @url{https://musicbrainz.org/, MusicBrainz}.")
     (license license:gpl3+)))
 
+ ;; May be removed after 2026-01-31
+(define-deprecated-package python-isrcsubmit isrcsubmit)
+
 (define-public python-pylast
   (package
     (name "python-pylast")