community/seaward: upgrade to 1.0.2

https://github.com/M3nny/seaward/releases/tag/1.0.2

--locked now works for this version, so it's been added.

assigned to @stonks3141

LGTM, thanks!

added 878 commits

• ae00b700...918106e1 - 877 commits from branch alpine:master
• 5b46d1b1 - community/seaward: upgrade to 1.0.2

Compare with previous version

merged