🧹 Update magetasks & dependencies, rm LICENSE files

[cardil]

Changes

• 🧹 Update magetasks & dependencies
• 🧹 Remove the LICENSE files
• 🧹 Fix lint errors
• 🧹 Adjust to the 🧹 Clean up the kn sub-package knative/client-pkg#155

/kind cleanup

Closes #333

[codecov]

Codecov Report

Attention: Patch coverage is 12.72727% with 48 lines in your changes are missing coverage. Please review.

Project coverage is 53.16%. Comparing base (95d61bd) to head (565965f).
Report is 2 commits behind head on main.

Files	Patch %	Lines
pkg/cli/ics/encoding.go	0.00%	7 Missing ⚠️
pkg/k8s/kubeclient.go	0.00%	7 Missing ⚠️
pkg/k8s/jobrunner.go	0.00%	6 Missing ⚠️
pkg/cli/create.go	50.00%	5 Missing ⚠️
pkg/cli/ics/send.go	0.00%	4 Missing ⚠️
pkg/tests/cloudevent_server.go	0.00%	3 Missing ⚠️
internal/cli/cmd/build.go	0.00%	2 Missing ⚠️
internal/cli/cmd/send.go	0.00%	2 Missing ⚠️
pkg/k8s/addressresolver.go	0.00%	2 Missing ⚠️
pkg/sender/in_cluster.go	33.33%	2 Missing ⚠️
... and 8 more

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #339   +/-   ##
=======================================
  Coverage   53.16%   53.16%           
=======================================
  Files          51       51           
  Lines        1580     1580           
=======================================
  Hits          840      840           
  Misses        671      671           
  Partials       69       69           

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[cardil]

/cc @dsimansk

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

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[cardil]

/override codecov/patch

That Codecov is weird!

[knative-prow]

@cardil: Overrode contexts on behalf of cardil: codecov/patch

In response to this:

/override codecov/patch

That Codecov is weird!

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