ci: test jobs used to be call 'build' while they are tests jobs

[Psycojoker]

No description provided.

[github-actions]

Summary:
The PR involves a minor change to the workflow name from build to tests. This is a straightforward modification that does not affect the core functionality of the project and is unlikely to introduce bugs.

Highlighting:

diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 8d5456c6..b4fecc57 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -12,7 +12,7 @@ on:
     - cron: '4 0 * * *'
 
 jobs:
-  build:
+  tests:
     strategy:
       fail-fast: false
       matrix:

This change is purely cosmetic and does not alter the behavior of the GitHub Actions workflow, making it suitable for a routine review.

[philogicae]

LGTM