Bump core/cache_subsystem/hpdcache from edd501c to b81f34f

Bumps [core/cache_subsystem/hpdcache](https://github.com/openhwgroup/cv-hpdcache) from `edd501c` to `b81f34f`.
- [Release notes](https://github.com/openhwgroup/cv-hpdcache/releases)
- [Commits](openhwgroup/cv-hpdcache@edd501c...b81f34f)

---
updated-dependencies:
- dependency-name: core/cache_subsystem/hpdcache
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>