Apply suggestions from code review

Co-authored-by: Cody Robibero <cody@robibe.ro>

Dockerfile

@@ -88,5 +88,5 @@ ENTRYPOINT ["./jellyfin/jellyfin", \
     "--ffmpeg", "/usr/lib/jellyfin-ffmpeg/ffmpeg"]
 
 HEALTHCHECK --interval=30s --timeout=30s --start-period=10s --retries=3 \
-    CMD  curl http://localhost:$(grep -oP '(?<=PublicPort>)[^<]+' /config/config/network.xml)/$(grep -oP '(?<=BaseUrl>)[^<]+' /config/config/network.xml)health \
+    CMD  curl http://localhost:$(grep -oP '(?<=HttpServerPortNumber>)[^<]+' /config/config/network.xml)/$(grep -oP '(?<=BaseUrl>)[^<]+' /config/config/network.xml)health \
     || exit 1

Dockerfile.arm

@@ -79,5 +79,5 @@ ENTRYPOINT ["./jellyfin/jellyfin", \
     "--ffmpeg", "/usr/lib/jellyfin-ffmpeg/ffmpeg"]
 
 HEALTHCHECK --interval=30s --timeout=30s --start-period=10s --retries=3 \
-    CMD  curl http://localhost:$(grep -oP '(?<=PublicPort>)[^<]+' /config/config/network.xml)/$(grep -oP '(?<=BaseUrl>)[^<]+' /config/config/network.xml)health \
+    CMD  curl http://localhost:$(grep -oP '(?<=HttpServerPortNumber>)[^<]+' /config/config/network.xml)/$(grep -oP '(?<=BaseUrl>)[^<]+' /config/config/network.xml)health \
     || exit 1

Dockerfile.arm64

@@ -70,5 +70,5 @@ ENTRYPOINT ["./jellyfin/jellyfin", \
     "--ffmpeg", "/usr/bin/ffmpeg"]
 
 HEALTHCHECK --interval=30s --timeout=30s --start-period=10s --retries=3 \
-    CMD  curl http://localhost:$(grep -oP '(?<=PublicPort>)[^<]+' /config/config/network.xml)/$(grep -oP '(?<=BaseUrl>)[^<]+' /config/config/network.xml)health \
+    CMD  curl http://localhost:$(grep -oP '(?<=HttpServerPortNumber>)[^<]+' /config/config/network.xml)/$(grep -oP '(?<=BaseUrl>)[^<]+' /config/config/network.xml)health \
     || exit 1