chore: Update `audio_tagger` dependency

mix.lock

@@ -1,5 +1,5 @@
 %{
-  "audio_tagger": {:git, "https://github.com/headwayio/audio_tagger.git", "70f8ce8abe45b4f26ddd3876bc935845823c3f8c", []},
+  "audio_tagger": {:git, "https://github.com/headwayio/audio_tagger.git", "b960515109d6249a792f37aa07452373d4d8bdd1", []},
   "aws_signature": {:hex, :aws_signature, "0.3.1", "67f369094cbd55ffa2bbd8cc713ede14b195fcfb45c86665cd7c5ad010276148", [:rebar3], [], "hexpm", "50fc4dc1d1f7c2d0a8c63f455b3c66ecd74c1cf4c915c768a636f9227704a674"},
   "axon": {:hex, :axon, "0.6.0", "fd7560079581e4cedebaf0cd5f741d6ac3516d06f204ebaf1283b1093bf66ff6", [:mix], [{:kino, "~> 0.7", [hex: :kino, repo: "hexpm", optional: true]}, {:kino_vega_lite, "~> 0.1.7", [hex: :kino_vega_lite, repo: "hexpm", optional: true]}, {:nx, "~> 0.6.0", [hex: :nx, repo: "hexpm", optional: false]}, {:polaris, "~> 0.1", [hex: :polaris, repo: "hexpm", optional: false]}, {:table_rex, "~> 3.1.1", [hex: :table_rex, repo: "hexpm", optional: true]}], "hexpm", "204e7aeb50d231a30b25456adf17bfbaae33fe7c085e03793357ac3bf62fd853"},
   "bimap": {:hex, :bimap, "1.3.0", "3ea4832e58dc83a9b5b407c6731e7bae87458aa618e6d11d8e12114a17afa4b3", [:mix], [], "hexpm", "bf5a2b078528465aa705f405a5c638becd63e41d280ada41e0f77e6d255a10b4"},