Pin the pytest version and replace jaxlib dependency (#626)

* pin pytest to <7 on python>3.8.10

* jax[minimum-jaxlib] instead of jax & jaxlib

* updated intersphinx mapping to scipy

* updated intersphinx mapping to scipy... again

* Update jax version to 0.2.29

Co-authored-by: Marvin Pförtner <marvin.pfoertner@icloud.com>

* update pytest and pytest-cases version pins

* Undo scipy intersphinx mapping change

Co-authored-by: Marvin Pförtner <marvin.pfoertner@icloud.com>

setup.cfg

@@ -54,8 +54,7 @@ exclude =
 
 # Autodiff backends
 jax =
-    jax<0.2.28; platform_system!="Windows"
-    jaxlib<0.1.77; platform_system!="Windows"
+    jax[minimum-jaxlib]<0.2.29; platform_system!="Windows"
 
 # Problem zoo dependencies
 zoo =
@@ -72,10 +71,10 @@ full =
 
 # Dependencies needed to run the tests (semicolon/line-separated)
 test =
-    pytest>=4.6; python_version>"3.8.10"
-    pytest>=6.1.1,<6.2; python_version<="3.8.10"
+    pytest>=4.6,<8.0.0; python_version>"3.8.10"
+    pytest>=6.1.1,<6.2.0; python_version<="3.8.10"
     pytest-cov
-    pytest-cases>=3.6.3
+    pytest-cases>=3.6.9,<4.0.0
     # Optional dependencies of ProbNum
     GPy
     matplotlib