chore: update release notes (#2320)

Author: sfc-gh-jwilkowski

RELEASE-NOTES.md

@@ -22,10 +22,20 @@
 * Added `--private-link` flag to `snow spcs image-registry url` command for retrieving private link URLs.
 * Added `--encryption` flag to `snow stage create` command defining the type of encryption for all files on the stage.
 
+## Fixes and improvements
+
+
+# v3.8.1
+
+## Deprecations
+
+## New additions
+
 ## Fixes and improvements
 * Upgrade message is printed to stderr.
 * Fixed `snowflake.core` import issue on newer Python versions
 
+
 # v3.8.0
 
 ## Deprecations
@@ -45,6 +55,17 @@
 * Move `enable_release_channels` from global feature flag to project level.
 * Fixed `snow spcs service metrics` command to accept fully qualified service names.
 
+
+# v3.7.2
+
+## Deprecations
+
+## New additions
+
+## Fixes and improvements
+* Fix error appearing on help messages after click BCR update.
+
+
 # v3.7.1
 
 ## Deprecations