[infra] Better name for sanitycheck job

[Kielek]

Oh, it wasn't clear to me from the workflow/job/step name that formatting other than EOL and non-ASCII was in scope.

Originally posted by @martincostello in #3079 (comment)

Need to find better name for sanitycheck job. Under the hood python script is executing more checks than only ASCII + EOL
This line:

opentelemetry-dotnet-contrib/.github/workflows/sanitycheck.yml

Line 32 in dea5f9e

- name: detect non-ASCII encoding and trailing space

[shubhanshu-02]

/assign

[Kielek]

@shubhanshu-02, looking for your PR!