Update Prometheus vendoring.

3 jobs from bjk/update_prom_vendor in 4 minutes and 8 seconds
Status Job ID Name Coverage
  Test
passed #90681397
test:1.10

00:01:57

86.2%
passed #90681395
test:1.8

00:04:08

10.1%
passed #90681396
test:1.9

00:03:52

10.1%