Manifest build: add support for SSH_CONFIG variable

merged

Integration merge request: https://git.seco.com/seco-ne/yocto/infrastructure/ci-test/minimal-srcrev/-/merge_requests/99

Integration merge request: https://git.seco.com/seco-ne/yocto/infrastructure/ci-test/minimal-foo/-/merge_requests/309

Integration merge request: https://git.seco.com/seco-ne/yocto/infrastructure/ci-test/minimal-bar/-/merge_requests/252

Integration merge request: https://git.seco.com/seco-ne/yocto/infrastructure/ci-test/minimal-foo/-/merge_requests/310

Integration merge request: https://git.seco.com/seco-ne/yocto/infrastructure/ci-test/minimal-manifest/-/merge_requests/560

Integration merge request: https://git.seco.com/seco-ne/yocto/infrastructure/ci-test/minimal-manifest/-/merge_requests/561

Integration merge request: seco-ne/3rd-party/kuk/uboot-imx-kuk!112 (merged)

mentioned in merge request seco-ne/3rd-party/kuk/uboot-imx-kuk!112 (merged)

Integration merge request: seco-ne/kernel/modules/gfplatdetect!73 (merged)

mentioned in merge request seco-ne/kernel/modules/gfplatdetect!73 (merged)

Integration merge request: seco-ne/kernel/modules/egalaxi2c!76 (merged)

mentioned in merge request seco-ne/kernel/modules/egalaxi2c!76 (merged)

Integration merge request: seco-ne/kernel/linux-guf!193 (merged)