Merge branch 'kk_CA_SCTExtensionAlg' into 'main'

Add a CA version of loading SCTExtensionAlg.

See merge request !66399 (merged)

(cherry picked from commit 253b6409)

835e625b Add a CA version of loading SCTExtensionAlg. 9051cf46 Add missing copyright statement. 1195a618 Update copyright year to end in 2023. acebf9c3 Rename TransformUtils.py to SCTExtensionAlgConfig.py. e6515c55 Remove the legacy SCTExtensionAlg JO.