Update release date to today (21 Aug)

Author: EFM-Bobby

product_docs/docs/efm/4/efm_rel_notes/index.mdx

@@ -6,7 +6,7 @@ cover what was new in each release.
 
 | Version | Release Date |
 | ------- | ------------ |
-| [4.10](01_efm_410_rel_notes) | 15 Aug 2024|
+| [4.10](01_efm_410_rel_notes) | 21 Aug 2024|
 | [4.9](01_efm_49_rel_notes) | 14 May 2024|
 | [4.8](02_efm_48_rel_notes) | 15 Nov 2023|
 | [4.7](03_efm_47_rel_notes) | 20 Jun 2023|