Try to manually install bat-extras in Dockerfile

bat-extras is not in apk

So try to run it in the Dockerfile instead

Author: somewatson

Dockerfile

@@ -6,7 +6,12 @@ FROM ghcr.io/linuxserver/baseimage-alpine:3.20 AS buildstage
 RUN \
   apk add --no-cache \
     bat \
-    bat-extras
+    git \
+    ripgrep
+
+RUN git clone https://github.com/eth-p/bat-extras.git && \
+    cd bat-extras && \
+    ./build.sh
 
 # copy local files
 COPY root/ /root-layer/