[18-stable] Update redhat-actions/openshift-tools-installer action to v3 (18-stable)

[ospk8s-renovate]

This PR contains the following updates:

Package	Type	Update	Change
redhat-actions/openshift-tools-installer	action	major	v2 → v3

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Release Notes

redhat-actions/openshift-tools-installer (redhat-actions/openshift-tools-installer)

v3.0

Compare Source

Breaking Changes

• Removed kam client — the redhat-developer/kam project is abandoned (last release Oct 2023) #​169
• Switched kamel and operator-sdk to GitHub-only sources — the OpenShift mirror versions are significantly behind upstream. Using source: mirror with these clients will now produce an error #​170
• Switched tkn from the stale v4 clients mirror to the CGW pipelines mirror — versions prior to 1.15.4 are no longer available via mirror #​161

Features

• Add argocd client from the CGW openshift-gitops mirror #​161
• Add Content Gateway (CGW) mirror support for Helm 4.x — users can now install Helm 4 with helm: "4" #​161
• Support multiple mirror base URLs per client, enabling version resolution across both the v4 clients mirror and CGW #​161

Bug Fixes

• Fix isHashMissing check to short-circuit before fetching hash files — previously it only applied when no hash file existed in the directory, but CGW pipelines has an incompatible hash file format #​168
• Fix js-yaml CVE-2026-59870 via npm override #​167
• Fix octokit openapi-types 28.x type compatibility #​167
• Fix Dependabot PR CI failures #​156
• Fix npm audit vulnerabilities and simplify security scan #​160

Dependencies

• Bump @octokit/openapi-types from 27.0.0 to 28.0.0 #​163
• Bump @octokit/plugin-paginate-rest from 14.0.0 to 15.0.0 #​165
• Bump brace-expansion to 5.0.8 and js-yaml to 5.2.2 #​151
• Bump dev-dependencies group #​158

v3

Compare Source

Breaking Changes

• Removed kam client — the redhat-developer/kam project is abandoned (last release Oct 2023) #​169
• Switched kamel and operator-sdk to GitHub-only sources — the OpenShift mirror versions are significantly behind upstream. Using source: mirror with these clients will now produce an error #​170
• Switched tkn from the stale v4 clients mirror to the CGW pipelines mirror — versions prior to 1.15.4 are no longer available via mirror #​161

Features

• Add argocd client from the CGW openshift-gitops mirror #​161
• Add Content Gateway (CGW) mirror support for Helm 4.x — users can now install Helm 4 with helm: "4" #​161
• Support multiple mirror base URLs per client, enabling version resolution across both the v4 clients mirror and CGW #​161

Bug Fixes

• Fix isHashMissing check to short-circuit before fetching hash files — previously it only applied when no hash file existed in the directory, but CGW pipelines has an incompatible hash file format #​168
• Fix js-yaml CVE-2026-59870 via npm override #​167
• Fix octokit openapi-types 28.x type compatibility #​167
• Fix Dependabot PR CI failures #​156
• Fix npm audit vulnerabilities and simplify security scan #​160

Dependencies

• Bump @octokit/openapi-types from 27.0.0 to 28.0.0 #​163
• Bump @octokit/plugin-paginate-rest from 14.0.0 to 15.0.0 #​165
• Bump brace-expansion to 5.0.8 and js-yaml to 5.2.2 #​151
• Bump dev-dependencies group #​158

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[openshift-ci]

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