Updates Docker image to specific version tag

Replaces the generic 'latest' tag with a specific versioned
Docker tag '20250505_ubuntu22.04' to ensure build consistency
and reproducibility.

Signed-off-by: Christopher Turner <christopher.g.turner@intel.com>

Author: cgturner1

scripts/docker-run.sh

@@ -44,4 +44,4 @@ docker run -i -v "${SOF_TOP}":/home/sof/work/sof.git \
 	--env https_proxy="$https_proxy" \
 	--env SOF_WORKSPACE="/home/sof/work" \
 	$SOF_DOCKER_RUN \
-	thesofproject/sof:latest ./scripts/sudo-cwd.sh "$@"
+	thesofproject/sof:20250505_ubuntu22.04 ./scripts/sudo-cwd.sh "$@"