fix libwebp configuration in dockerfile

Dockerfile

@@ -2,14 +2,12 @@ FROM eclipse-temurin AS builder
 
 # bump: libwebp /LIBWEBP_VERSION=([\d.]+)/ https://github.com/webmproject/libwebp.git|^1
 # bump: libwebp after ./hashupdate Dockerfile LIBWEBP $LATEST
-# bump: libwebp link "Release notes" https://github.com/webmproject/libwebp/releases/tag/v$LATEST
-# bump: libwebp link "Source diff $CURRENT..$LATEST" https://github.com/webmproject/libwebp/compare/v$CURRENT..v$LATEST
 ARG LIBWEBP_VERSION=1.4.0
-ARG LIBWEBP_URL="https://github.com/webmproject/libwebp/archive/v$$LIBWEBP_VERSION.tar.gz"
+ARG LIBWEBP_URL="https://github.com/webmproject/libwebp/archive/v$LIBWEBP_VERSION.tar.gz"
 ARG LIBWEBP_SHA256=12af50c45530f0a292d39a88d952637e43fb2d4ab1883c44ae729840f7273381
 
 WORKDIR /app
-RUN curl "$LIBWEBP_URL" -o libwebp.tar.gz && \
+RUN curl -L --fail --retry 3 --retry-delay 5 "$LIBWEBP_URL" -o libwebp.tar.gz && \
     echo "$LIBWEBP_SHA256 libwebp.tar.gz" | sha256sum -c - && \
     tar -xzf libwebp.tar.gz --one-top-level=libwebp --strip-components=1
 COPY settings.gradle build.gradle gradlew ./