expose delete pipleline in cli

[KiaraGrouwstra]

Clear and concise description of the problem

presently, the CLI contains a number of operations on builds:

woodpecker-cli build --help
8:25PM ??? github.com/woodpecker-ci/woodpecker/cli/common/zerologger.go:20 > LogLevel = trace
NAME:
   woodpecker-cli build - manage builds

USAGE:
   woodpecker-cli build command [command options] [arguments...]

COMMANDS:
   ls       show build history
   last     show latest build details
   logs     show build logs
   info     show build details
   stop     stop a build
   start    start a build
   approve  approve a build
   decline  decline a build
   queue    show build queue
   ps       show build steps
   help, h  Shows a list of commands or help for one command

however, the api supports build operations including:

• DeleteBuild (cancel)
• DeleteBuildLogs

Suggested solution

it would be nice to see parity between the api and cli.
there might be other endpoints as well.

Alternative

use the api over cli

Additional context

No response

Validations

• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[KiaraGrouwstra]

the latter may be missing from the web UI as well