An error has shown that Nim compilation uses cache folder in `jenkins` home:
```
clang: error: no such file or directory:
'/Users/jenkins/.cache/nim/nimsuggest_r/@m..@slib@swrappers@slinenoise@slinenoise.c.o'
```
This is a bad idea as parallel CI builds can result in very bizzarre bugs.
Signed-off-by: Jakub Sokołowski <jakub@status.im>
This commit points to `status-jenkins-lib` version where we provide api-proxy credentials to Jenkins in CI and the desktop build would then get these env vars
- `STATUS_BUILD_PROXY_USER`
- `STATUS_BUILD_PROXY_PASSWORD`