Pin crane installation to version v0.21.5

[matejvasek]

The latest crane version contains bug. It was causing freeze of "Prepare Images" step.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 53.43%. Comparing base (f305f89) to head (51d47df).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3816      +/-   ##
==========================================
+ Coverage   45.41%   53.43%   +8.01%     
==========================================
  Files         200      200              
  Lines       23426    23426              
==========================================
+ Hits        10640    12517    +1877     
+ Misses      11843     9654    -2189     
- Partials      943     1255     +312     

Flag	Coverage Δ
e2e	33.69% <ø> (+12.05%)	⬆️
e2e go	29.64% <ø> (?)
e2e node	25.87% <ø> (?)
e2e python	29.98% <ø> (?)
e2e quarkus	25.96% <ø> (?)
e2e rust	25.44% <ø> (?)
e2e springboot	24.05% <ø> (?)
e2e typescript	25.96% <ø> (?)
e2e-config-ci	26.76% <ø> (?)
integration	15.64% <ø> (?)
unit macos-14	42.20% <ø> (ø)
unit macos-latest	42.20% <ø> (ø)
unit ubuntu-24.04-arm	42.50% <ø> (ø)
unit ubuntu-latest	43.06% <ø> (ø)
unit windows-latest	42.24% <ø> (ø)

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[matejvasek]

@Elvand-Lie @Itx-Psycho0 @xenonnn4w @SeeyaVhora @vishal-iiserb @Ankitsinghsisodya

Hello, this fixes issues that causes PR CI check to hang/fail. Once this is merged you need to rebase your PRs to pass checks.

[matejvasek]

PTAL @lkingland

[gauron99]

/lgtm

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: gauron99, matejvasek

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