fix(deps): update dependency renovate/renovate to v32.64.8

This MR contains the following updates:

Package	Update	Change
renovate/renovate	patch	32.64.4 -> 32.64.8

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Release Notes

renovatebot/renovate

v32.64.8

32.64.8 (2022-05-23)

Bug Fixes

• http: cache head requests (#​15695) (e319e21)

v32.64.7

32.64.7 (2022-05-23)

Bug Fixes

• datasource:docker: use json request for auth check (#​15693) (fcc1a8f)

Documentation

• dependency-dashboard: fix typo (#​15692) (136b3f1)

v32.64.6

32.64.6 (2022-05-23)

Bug Fixes

• datasource:docker: wrong scope for ghcr.io (#​15686) (fd00fd5)

v32.64.5

32.64.5 (2022-05-23)

Bug Fixes

• grouping: group update with same major version should be ignorable (#​15586) (f931d9b)

Documentation

• update references to renovate/renovate to v32.64.2 (#​15681) (546012f)

Miscellaneous Chores

• deps: lock file maintenance (#​15682) (d130427)

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