Update dependency Flask to v3 (#979)

* Update dependency Flask to v3

Signed-off-by: red-hat-konflux <126015336+red-hat-konflux[bot]@users.noreply.github.com>

* fixup: regenerate zz_filesystem_generated.go

Signed-off-by: Matej Vašek <mvasek@redhat.com>

* add current branch detection with prefix v

Signed-off-by: David Fridrich <fridrich.david19@gmail.com>

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Signed-off-by: red-hat-konflux <126015336+red-hat-konflux[bot]@users.noreply.github.com>
Signed-off-by: Matej Vašek <mvasek@redhat.com>
Signed-off-by: David Fridrich <fridrich.david19@gmail.com>
Co-authored-by: red-hat-konflux[bot] <126015336+red-hat-konflux[bot]@users.noreply.github.com>
Co-authored-by: Matej Vašek <mvasek@redhat.com>
Co-authored-by: David Fridrich <fridrich.david19@gmail.com>

Author: 3 people