release: Update package.xml version to 4.12.0

6 jobs for master in 6 minutes and 46 seconds (queued for 2 seconds)
latest
Name Stage Failure
failed
robotpkg-hpp-constraints-buster Test
Total Test time (real) =   0.86 sec

The following tests FAILED:
1 - multithread (Child aborted)
7 - generic-transformation (Child aborted)
Errors while running CTest
make: *** [Makefile:110: test] Error 8
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1

failed
format Test
./doc/error-norm-based.py:11:19: E202 whitespace before ')'
./doc/error-norm-based.py:12:6: E201 whitespace after '('
./doc/error-norm-based.py:12:19: E202 whitespace before ')'
./doc/error-norm-based.py:20:10: E211 whitespace before '('
./doc/error-norm-based.py:26:25: E231 missing whitespace after ','
./doc/error-norm-based.py:26:28: E231 missing whitespace after ','
./doc/error-norm-based.py:36:14: E231 missing whitespace after ','
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1