Bump nginx base image to latest digest

Resolves CVE-2025-31115

Signed-off-by: Niklas <[email protected]>

Author: nscuro

docker/Dockerfile.alpine

@@ -1,4 +1,4 @@
-FROM nginxinc/nginx-unprivileged:1.27.4-alpine@sha256:d07336ba108a33109d13ec12e0008ff126845b48c810cdb1d36b4f0694295b19
+FROM nginxinc/nginx-unprivileged:1.27.4-alpine@sha256:d43566af1caeaf6d16d4880f587cdeb9e0efe172aad1d1d43ca4ce0fa304e293
 
 # Arguments that can be passed at build time
 ARG COMMIT_SHA=unknown
@@ -49,4 +49,4 @@ LABEL \
     org.opencontainers.image.source="https://github.com/DependencyTrack/frontend" \
     org.opencontainers.image.revision="${COMMIT_SHA}" \
     org.opencontainers.image.licenses="Apache-2.0" \
-    maintainer="[email protected]"
+    maintainer="[email protected]"