Update Slack invitation link
Fixes
@@ -18,7 +18,7 @@ http {
listen ${PORT};
server_name slack.bazel.build;
- return 301 https://bazelbuild.slack.com/join/shared_invite/zt-dzm4qj0h-maSR3EcEr8SWE1f7dA55zw;
+ return 301 https://join.slack.com/t/bazelbuild/shared_invite/zt-12qiikgw6-qYqQMtD3aFxLQrA_77xV5Q;
error_page 500 502 503 504 /50x.html;
location = /50x.html {
