Update RISC-V vectorization and remove ARM SVE compiler workarounds

13 jobs for multiarch in 20 minutes and 6 seconds (queued for 2 seconds)
Name Stage Failure
failed
riscv64 Test
FAILED pystencils_tests/test_random.py::test_staggered[True] - subprocess.Cal...
FAILED pystencils_tests/test_random.py::test_staggered[False] - subprocess.Ca...
======= 46 failed, 2 passed, 16 skipped, 6 xfailed, 3 warnings in 51.77s =======
Uploading artifacts for failed job
Uploading artifacts...
report.xml: found 1 matching files and directories

Uploading artifacts as "junit" to coordinator... 201 Created
id=813334 responseStatus=201 Created token=9CdTbzq2
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1