Update dependency @actions/cache to v6.2.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@actions/cache (source)	6.0.1 → 6.2.0

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Release Notes

actions/toolkit (@​actions/cache)

v6.2.0

• Handle cache read error due to read-only token: detect the cache read denied: prefix on cache download failures (both the v2 twirp path and the v1 _apis/artifactcache path) and surface it as a core.warning (without failing the run).
• Honor the ACTIONS_CACHE_MODE environment variable: skip restore when the effective cache-mode does not permit reads (none, write-only) and skip save when it does not permit writes (none, read), logging a single non-fatal core.info line. When ACTIONS_CACHE_MODE is unset or unrecognized, behavior is unchanged.

v6.1.0

• Handle cache write error due to read-only token: detect the cache write denied: prefix on cache reservation failures and surface it as a core.warning (without failing the run).

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