fix: Removes cache from Dockerfile to prevent failed ci builds.

Dockerfile

@@ -4,14 +4,14 @@ WORKDIR /build
 
 # First just resolve dependencies.
 COPY ./Package.* ./
-RUN --mount=type=cache,target=/build/.build swift package resolve \
+RUN swift package resolve \
   $([ -f ./Package.resolved ] && echo "--force-resolved-versions" || true)
 
 # Copy entire repo into container
 COPY . .
 
 # Build the static site.
-RUN --mount=type=cache,target=/build/.build swift run
+RUN swift run
 
 # ==================================================
 # Run Image