Update build.yaml

[RosaWagner]

Trying to unblock release action by removing the line about missing (and unnecessary file)

[zalando-compr-opensource]

invalid team ID

The team ID in your .zappr.yaml file (in the default branch) does not appear
to be valid. Please, fix this before team ID checks will be added back into
ComPR's specification check.

(If this PR is already fixing this, ignore the warning. But preferably fix it
in a PR separate from other changes, as the merge build from this PR will
not give a compliant image.)

You can follow this guideline for help.

[RosaWagner]

This can be merged @afemartin @axyz