internal/rosa/package: rename buildcatrust

This causes a single rebuild due to substitution.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/nss.go

@@ -85,7 +85,7 @@ func (t Toolchain) newNSSCACert() (pkg.Artifact, string) {
 		Bash,
 
 		NSS,
-		H("python-buildcatrust"),
+		H("buildcatrust"),
 	), nil, nil, `
 mkdir -p /work/system/etc/ssl/{certs/unbundled,certs/hashed,trust-source}
 buildcatrust \