requirement: bump elastic-transport from 8.12.0 to 8.15.1

Bumps [elastic-transport](https://github.com/elastic/elastic-transport-python) from 8.12.0 to 8.15.1.
- [Release notes](https://github.com/elastic/elastic-transport-python/releases)
- [Changelog](https://github.com/elastic/elastic-transport-python/blob/main/CHANGELOG.md)
- [Commits](elastic/elastic-transport-python@v8.12.0...v8.15.1)

---
updated-dependencies:
- dependency-name: elastic-transport
  dependency-type: indirect
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements/base.txt

@@ -263,9 +263,9 @@ django-oauth-toolkit==2.3.0 \
     --hash=sha256:47dfeab97ec21496f307c2cf3468e64ca08897fa499bf3104366d32005c9111d \
     --hash=sha256:cf1cb1a5744672e6bd7d66b4a110a463bcef9cf5ed4f27e29682cc6a4d0df1ed
     # via -r requirements/base.in
-elastic-transport==8.12.0 \
-    --hash=sha256:48839b942fcce199eece1558ecea6272e116c58da87ca8d495ef12eb61effaf7 \
-    --hash=sha256:87d9dc9dee64a05235e7624ed7e6ab6e5ca16619aa7a6d22e853273b9f1cfbee
+elastic-transport==8.15.1 \
+    --hash=sha256:9cac4ab5cf9402668cf305ae0b7d93ddc0c7b61461d6d1027850db6da9cc5742 \
+    --hash=sha256:b5e82ff1679d8c7705a03fd85c7f6ef85d6689721762d41228dd312e34f331fc
     # via elasticsearch
 elasticsearch==8.12.1 \
     --hash=sha256:00c997720fbd0f2afe5417c8193cf65d116817a0250de0521e30c3e81f00b8ac \

requirements/dev.txt

@@ -432,9 +432,9 @@ editorconfig==0.12.4 \
     # via
     #   cssbeautifier
     #   jsbeautifier
-elastic-transport==8.12.0 \
-    --hash=sha256:48839b942fcce199eece1558ecea6272e116c58da87ca8d495ef12eb61effaf7 \
-    --hash=sha256:87d9dc9dee64a05235e7624ed7e6ab6e5ca16619aa7a6d22e853273b9f1cfbee
+elastic-transport==8.15.1 \
+    --hash=sha256:9cac4ab5cf9402668cf305ae0b7d93ddc0c7b61461d6d1027850db6da9cc5742 \
+    --hash=sha256:b5e82ff1679d8c7705a03fd85c7f6ef85d6689721762d41228dd312e34f331fc
     # via
     #   -r requirements/base.txt
     #   elasticsearch