[CI/CD] Add PyPi release workflow to dev branch (motioneye-project#2675)

Apply beta "b1" version suffix for a pre-release on PyPI.

Bump version string to 0.43.1b1 for simpler upgrades from 0.43.0, which did not have a pre-release suffix.

Update install instructions to pull pre-release from PyPI instead of GitHub.

Additionally add instructions to work around the "error: externally-managed-environment" error on recent Debian and Ubuntu versions.

Signed-off-by: MichaIng <micha@dietpi.com>

Merge branch 'dev' of github.com:ccrisan/motioneye into dev

Bump version to 0.42

Bump version to 0.41

Bump version to 0.41rc1

Bump version to 0.40

Bump version to 0.40rc5

Bump version to 0.40rc4

Bump version to 0.40rc3

Bump version to 0.40rc2