Remove non-pie versions from build

Also use custom tag as version name to allow re-builds of same version
5 jobs for remove-non-pie-builds in 9 minutes and 40 seconds (queued for 17 seconds)
Status Job ID Name Coverage
  Build
passed #4016
build

00:03:22

failed #4014
build

00:01:11

failed #4013
build

00:01:12

failed #4011
build

00:01:18

 
  Test
failed #4012
allowed to fail
test

00:06:17

 
Name Stage Failure
failed
test Test
  File "/usr/lib/python3.7/subprocess.py", line 347, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['touch', '--no-dereference', '-t', '197001010000.00', 'obfs4proxy_arm.zip']' returned non-zero exit status 1.
Uploading artifacts...
WARNING: obfs4proxy-*.zip: no matching files
WARNING: obfs4proxy-*.pom: no matching files
WARNING: obfs4proxy-*-sources.jar: no matching files
ERROR: No files to upload
ERROR: Job failed: exit code 1