testing/nix: upgrade to 2.3.7

7 jobs for !12532 with nix in 4 minutes and 48 seconds (queued for 2 seconds)
detached
Status Job ID Name Coverage
  Lint
passed #208272
x86_64 docker-alpine
lint

00:00:23

 
  Build
passed #208277
aarch64 ci-build docker-alpine
build-aarch64

00:02:41

passed #208278
armv7 ci-build docker-alpine
build-armv7

00:00:37

passed #208276
ppc64le ci-build docker-alpine
build-ppc64le

00:00:45

passed #208275
s390x ci-build docker-alpine
build-s390x

00:00:24

passed #208274
x86 ci-build docker-alpine
build-x86

00:01:40

passed #208273
x86_64 ci-build docker-alpine
build-x86_64

00:01:25