Merge pull request sonic-net#570 from mssonicbld/sonicbld/202405-merge

[code sync] Merge code from sonic-net/sonic-buildimage:202405 to 202405

Author: mssonicbld

platform/broadcom/sai.mk

@@ -1,5 +1,5 @@
 LIBSAIBCM_XGS_VERSION = 11.2.20.1
-LIBSAIBCM_DNX_VERSION = 11.2.18.1
+LIBSAIBCM_DNX_VERSION = 11.2.20.1
 
 LIBSAIBCM_XGS_BRANCH_NAME = SAI_11.2.0_GA
 LIBSAIBCM_DNX_BRANCH_NAME = SAI_11.2.0_GA