Merge #16114: contrib: add curl as a required program in gitian-build.py

97dce72261 contrib: add curl as a required program in gitian-build.py (fanquake)

Pull request description:

  Fixes: #16109

  Adds `curl` to the list of base programs required by the `gitian-build.py` script.

ACKs for commit 97dce7:
  hebasto:
    tACK 97dce72261 on Debian Buster RC1.

Tree-SHA512: 68847a527aa6b5d883bffd6a6fe6bbbe4b96ceddb30f55ed5ffbfa690a10c2e9c1bc7ba4520319531ab3baa7a7f64c3c8ce89a791f7c746abe73a84c2942b94d

contrib/gitian-build.py

@@ -7,7 +7,7 @@ import sys
 
 def setup():
     global args, workdir
-    programs = ['ruby', 'git', 'make', 'wget']
+    programs = ['ruby', 'git', 'make', 'wget', 'curl']
     if args.kvm:
         programs += ['apt-cacher-ng', 'python-vm-builder', 'qemu-kvm', 'qemu-utils']
     elif args.docker and not os.path.isfile('/lib/systemd/system/docker.service'):