Bump CAPI to v1.14.0-alpha.0

[mboersma]

What type of PR is this?
/kind feature

What this PR does / why we need it:
Bumps Cluster API to v1.14.0-alpha.0. This pulls in CAPI's new separate sigs.k8s.io/cluster-api/api module, controller-runtime v0.24, Kubernetes v0.36 libraries, and requires Go 1.26.

Along the way:

• Updated Makefile tool versions to match CAPI v1.14 (controller-gen v0.21.0, conversion-gen v0.36.0, setup-envtest release-0.24) and regenerated CRDs.
• Bumped the Go toolchain to 1.26 (Dockerfile, netlify, go.mod) as CAPI v1.14 requires it.
• Fixed latent record.EventRecorder.Eventf calls that passed a non-constant string as the format argument, which Go 1.26's stricter go vet now rejects.
• Migrated api/v1alpha1 and exp/api/v1beta1 from the deprecated controller-runtime scheme.Builder to runtime.NewSchemeBuilder, matching the existing api/v1beta1 pattern.
• Added v1.14.0-alpha.0 to the e2e provider config and contract metadata.

Which issue(s) this PR fixes:
Fixes #6399

Special notes for your reviewer:
CAPI v1.14.0-alpha.0 is an alpha release, taken for early testing on main.

TODOs:

• squashed commits
• includes documentation
• adds unit tests
• cherry-pick candidate

Release note:

NONE

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[codecov]

Codecov Report

❌ Patch coverage is 29.26829% with 29 lines in your changes missing coverage. Please review.
✅ Project coverage is 44.05%. Comparing base (96ca585) to head (69ebed3).
⚠️ Report is 8 commits behind head on main.

Files with missing lines	Patch %	Lines
api/v1alpha1/groupversion_info.go	0.00%	4 Missing ⚠️
exp/api/v1beta1/groupversion_info.go	0.00%	4 Missing ⚠️
controllers/azuremachine_controller.go	57.14%	3 Missing ⚠️
controllers/asosecret_controller.go	60.00%	2 Missing ⚠️
controllers/azurecluster_controller.go	33.33%	2 Missing ⚠️
api/v1alpha1/azureasomanagedcluster_types.go	0.00%	1 Missing ⚠️
...i/v1alpha1/azureasomanagedclustertemplate_types.go	0.00%	1 Missing ⚠️
api/v1alpha1/azureasomanagedcontrolplane_types.go	0.00%	1 Missing ⚠️
...lpha1/azureasomanagedcontrolplanetemplate_types.go	0.00%	1 Missing ⚠️
api/v1alpha1/azureasomanagedmachinepool_types.go	0.00%	1 Missing ⚠️
... and 9 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6398      +/-   ##
==========================================
- Coverage   44.07%   44.05%   -0.02%     
==========================================
  Files         289      291       +2     
  Lines       25383    25391       +8     
==========================================
  Hits        11187    11187              
- Misses      13420    13428       +8     
  Partials      776      776              

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[mboersma]

/hold

#6395 needs to merge first, this is just to work out issues before v1.14 solidifies.

[kubernetes-prow]

@mboersma: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-cluster-api-provider-azure-apidiff	69ebed3	link	false	/test pull-cluster-api-provider-azure-apidiff
pull-cluster-api-provider-azure-apiversion-upgrade	69ebed3	link	true	/test pull-cluster-api-provider-azure-apiversion-upgrade
pull-cluster-api-provider-azure-e2e-aks	69ebed3	link	true	/test pull-cluster-api-provider-azure-e2e-aks

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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[kubernetes-prow]

PR needs rebase.

Details

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