fix: tar grpcurl permissions

nicolaka#158

grpcurl tar includes some wild UID/GID numbers that can't map to subuid/subgid.
```
2024-04-04 09:48:12 (10.9 MB/s) - '/tmp/grpcurl.tar.gz' saved [7706522/7706522]

tar: LICENSE: Cannot change ownership to uid 708061865, gid 708061865: Invalid argument
tar: grpcurl: Cannot change ownership to uid 708061865, gid 708061865: Invalid argument
tar: Exiting with failure status due to previous errors
chown: cannot access '/tmp/grpcurl': No such file or directory
Error: building at STEP "RUN /tmp/fetch_binaries.sh": while running runtime: exit status 1
```

build/fetch_binaries.sh

@@ -57,7 +57,7 @@ get_grpcurl() {
   VERSION=$(get_latest_release fullstorydev/grpcurl | sed -e 's/^v//')
   LINK="https://github.com/fullstorydev/grpcurl/releases/download/v${VERSION}/grpcurl_${VERSION}_linux_${TERM_ARCH}.tar.gz"
   wget "$LINK" -O /tmp/grpcurl.tar.gz  && \
-  tar -zxvf /tmp/grpcurl.tar.gz && \
+  tar --no-same-owner -zxvf /tmp/grpcurl.tar.gz && \
   mv "grpcurl" /tmp/grpcurl && \
   chmod +x /tmp/grpcurl
   chown root:root /tmp/grpcurl