Update selenium/standalone-firefox:4.38.0 Docker digest to c6a658f (#2230)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

docker-compose.yml

@@ -17,7 +17,7 @@ services:
       - SE_SCREEN_WIDTH=1680
     extra_hosts:
       - host.docker.internal:host-gateway
-    image: selenium/standalone-firefox:4.38.0@sha256:55a4edfba06be9d36c79457573bce443ff662280353385fa28d0a9fe895e0d26
+    image: selenium/standalone-firefox:4.38.0@sha256:c6a658f92ef38747da1179363daaa2f0bbc36e6d01f6405633947c4687c49f86
     networks:
       - ath-network
     ports: