Validate Fabric launcher jar and use HTTP/2 (#3606)

Dockerfile

@@ -48,7 +48,7 @@ RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
   --var version=${MC_SERVER_RUNNER_VERSION} --var app=mc-server-runner --file {{.app}} \
   --from ${GITHUB_BASEURL}/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
 
-ARG MC_HELPER_VERSION=1.48.5
+ARG MC_HELPER_VERSION=1.48.6
 ARG MC_HELPER_BASE_URL=${GITHUB_BASEURL}/itzg/mc-image-helper/releases/download/${MC_HELPER_VERSION}
 # used for cache busting local copy of mc-image-helper
 ARG MC_HELPER_REV=1

examples/modrinth/version-from-modrinth-projects/compose.yml

@@ -10,6 +10,6 @@ services:
         griefprevention
         discordsrv
       VERSION_FROM_MODRINTH_PROJECTS: true
-      SETUP_ONLY: true
+      MEMORY: 2G
     ports:
       - "25565:25565"