s2n-tls/1.5.15 package update (#47591)

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Signed-off-by: wolfi-bot <121097084+wolfi-bot@users.noreply.github.com>
Co-authored-by: wolfi-bot <121097084+wolfi-bot@users.noreply.github.com>

Author: octo-sts[bot]

s2n-tls.yaml

@@ -1,6 +1,6 @@
 package:
   name: s2n-tls
-  version: "1.5.14"
+  version: "1.5.15"
   epoch: 0
   description: AWS C99 implementation of the TLS/SSL protocols
   copyright:
@@ -19,7 +19,7 @@ environment:
 pipeline:
   - uses: git-checkout
     with:
-      expected-commit: 4ed4f1a658b70559ec4a18e91d1319daa14b0610
+      expected-commit: bb9c5991877c6a749981204131e6e47845adbe3d
       repository: https://github.com/aws/s2n-tls
       tag: v${{package.version}}