Ramon Roche 39b0568ea4 fix(ci): remove deprecated v1 cache API from container build
Backport of #26742 to release/1.17.

RunsOn v2.12.0 (March 6, 2026) removed v1 cache toolkit support,
causing the buildx GHA cache proxy to return 404 for v1 endpoints.
This broke the v1.17.0-rc2 container build.

Removing the explicit version=1 parameter lets buildkit auto-detect
the v2 protocol.

Signed-off-by: Ramon Roche <mrpollo@gmail.com>
2026-03-13 15:59:48 -07:00
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