build(deps): bump materialsproject/devops in /mpcontribs-kernel-gateway

Bumps materialsproject/devops from python-3.915.1 to python-3.915.2.

---
updated-dependencies:
- dependency-name: materialsproject/devops
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

mpcontribs-kernel-gateway/Dockerfile

@@ -1,4 +1,4 @@
-FROM materialsproject/devops:python-3.915.1 as base
+FROM materialsproject/devops:python-3.915.2 as base
 MAINTAINER Patrick Huck (tschaume)
 
 FROM base as python-deps