make graph workflow causes empty bot nodes

[beckermr]

It appears that the make graph workflow causes some bot nodes to be empty. See h5cpp. I don't yet understand why, but this is the source of the missing pr_info and version_pr_info keys.

[beckermr]

This happened again here: https://github.com/regro/cf-scripts/actions/runs/23052055514/job/66955480254 for the tibs feedstock.

[beckermr]

More PRs to try and fix this:

• fix: ensure deploy does not write data #5800
• test: add test for making graph to ensure new nodes are not written #5796
• fix: add more debugging output to figure out make graph error #5791
• fix: ensure we do not make empty node files #5780