Bump flv.js from 1.6.1 to 1.6.2

Bumps [flv.js](https://github.com/Bilibili/flv.js) from 1.6.1 to 1.6.2.
- [Release notes](https://github.com/Bilibili/flv.js/releases)
- [Commits](https://github.com/Bilibili/flv.js/compare/v1.6.1...v1.6.2)

---
updated-dependencies:
- dependency-name: flv.js
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -72,7 +72,7 @@
     "dompurify": "^2.3.1",
     "epubjs": "^0.3.85",
     "fast-text-encoding": "^1.0.3",
-    "flv.js": "^1.6.1",
+    "flv.js": "^1.6.2",
     "headroom.js": "^0.12.0",
     "hls.js": "^1.0.10",
     "intersection-observer": "^0.12.0",