Keeping track of possible issues and PR for release v0.14

[YosuaMichael]

Release Process

• Create release branch release/0.14
• Create release tracker issue: [v0.14] Release Tracker #6686
• Remove prototypes from release branch: Removing prototype related things from release/0.14 branch #6687
• Clean up live documentations
• Bump the versions on the main branch: Bump main version to 0.15 #6691
• Provide release branch to the release engineer and make sure to change dependency from nightly to RC pytorch core
• After the release of iOS binaries, update the ios/LibTorchvision.podspec file on main.

Known problem / bug

• Fix video clips format bug: fix bug in output format for pyav #6672
• Gallery rendering issue: Example gallery renderring issue #6679