chore: update nodejs to 22 in an attempt to fix undici errors

This is an attempt to fix the undici errors introduced after the switch
from axios to native fetch. The decision was made as it native fetch on
node 20 seems to be "experimental" and
> since native fetch is no longer experimental since Node 21

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:20-alpine AS BUILD_IMAGE
+FROM node:22-alpine AS BUILD_IMAGE
 
 WORKDIR /app
 
@@ -36,7 +36,7 @@ RUN touch config/DOCKER
 RUN echo "{\"commitTag\": \"${COMMIT_TAG}\"}" > committag.json
 
 
-FROM node:20-alpine
+FROM node:22-alpine
 
 # Metadata for Github Package Registry
 LABEL org.opencontainers.image.source="https://github.com/Fallenbagel/jellyseerr"