Fix support ffmpeg6.1 (#41)

* add 6.1 support

* add load cache test case

* add dependabot

Author: lucemia

.github/dependabot.yml

@@ -0,0 +1,17 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "pip" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"
+    allow:
+      - dependency-type: "all"
+  - package-ecosystem: "github-actions"
+    directory: "/" # Typically GitHub Actions workflows are located in .github/workflows
+    schedule:
+      interval: "weekly"

src/ffmpeg_media_type/utils/tests/test_ffmpeg.py

@@ -18,6 +18,13 @@ def test__get_muxer_info(snapshot: SnapshotAssertion) -> None:
     assert snapshot == _get_muxer_info("6.0", "E", "mp4", "MP4 (MPEG-4 Part 14)")
 
 
+def test_load_cache() -> None:
+    cache_file_6_1 = _cache_file("6.1")
+    cache_file_6_1_1 = _cache_file("6.1.1")
+
+    assert cache_file_6_1 == cache_file_6_1_1
+
+
 def test_generate_cache() -> None:
     cache_file = _cache_file("6.0")
     if os.path.exists(cache_file):