Prepare for kpack 0.1

[scothis]

Adds a new secret annotation kpack.io/docker to attach secrets to kpack
0.1 builds. Keeping existing annotations for back-compat.

Signed-off-by: Scott Andrews andrewssc@vmware.com

[codecov]

Codecov Report

Merging #289 into main will increase coverage by 0.14%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #289      +/-   ##
==========================================
+ Coverage   96.32%   96.47%   +0.14%     
==========================================
  Files         106      106              
  Lines        6341     5101    -1240     
==========================================
- Hits         6108     4921    -1187     
+ Misses        194      139      -55     
- Partials       39       41       +2     

Impacted Files	Coverage Δ
pkg/binding/commands/image_create.go	95.12% <ø> (+0.89%)	⬆️
pkg/build/commands/credential_apply.go	98.53% <100.00%> (+0.12%)	⬆️
pkg/build/commands/credential_list.go	96.87% <100.00%> (+0.82%)	⬆️
pkg/k8s/client.go	93.54% <0.00%> (-0.40%)	⬇️
pkg/build/commands/container_create.go	98.59% <0.00%> (-0.26%)	⬇️
pkg/knative/commands/adapter_create.go	99.19% <0.00%> (-0.19%)	⬇️
pkg/cli/arguments.go	98.36% <0.00%> (-0.17%)	⬇️
pkg/riff/commands/completion.go	99.38% <0.00%> (-0.11%)	⬇️
pkg/cli/env.go	100.00% <0.00%> (ø)
pkg/cli/sort.go	100.00% <0.00%> (ø)
... and 96 more

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