fix(Dockerfile): rename compressed binary from 'content' to 'dataloader'

The binary name in the Dockerfile is updated from 'content' to
'dataloader' to reflect the actual purpose and functionality of the
binary more accurately.

build/package/Dockerfile

@@ -45,7 +45,7 @@ RUN go build  \
 RUN upx -q -9 gmake \
 	&& upx -q -9 importer \
 	&& upx -q -9 baserow \
-	&& upx -q -9 content 
+	&& upx -q -9 dataloader 
 
 FROM gcr.io/distroless/static
 COPY --from=builder /go/modware-import/gmake /usr/local/bin/