Release 7.70.20

What's Changed

• impr: CLDSRV-373 new func test for S3C-5139 by @jonathan-gramain in #5108
• feat: CLDSRV-353 processVersioningState() null key support by @jonathan-gramain in #5064
• feat: CLDSRV-357 update versioningPreprocessing() helper for null keys by @jonathan-gramain in #5065
• feat: CLDSRV-358 preprocessingVersioningDelete() update for null keys by @jonathan-gramain in #5066
• feat: CLDSRV-355 activate null keys behavior by @jonathan-gramain in #5069
• feat: CLDSRV-359 pass getDeleteMarker flag to metadata when needed by @jonathan-gramain in #5070

Full Changelog: 7.70.19...7.70.20