Hdrp/backport 10.x.x (#6038)

* [HDRP] fix screenshots after cache server reset

* Bugfix 1359282: Emissive decal silhouette issue #5532

* Force scalarization of shadow index data off (#6007)

* [HDRP] Merge Hd/bugfix #5999

* Fix PBR Accumulation for 10.6 (#5991)

* Fix PBR Accumulation for 10.6

* Add ChangeLog

* Update CHANGELOG.md

* Fix shadow mask fade and optimize it at same time #5911

* Revert: Fixed tooltip not showing on labels in ShaderGraphs #5877

* Update CHANGELOG.md

* update reference screenhsots

Co-authored-by: Jarkko Lempiäinen <[email protected]>
Co-authored-by: FrancescoC-unity <[email protected]>
Co-authored-by: skhiat <[email protected]>

Author: 4 people