switch pytest-sugar -> pytest-pretty (#204)

* uprev pyo3, relax anyio constraint

* switch pytest-sugar -> pytest-pretty

requirements/testing.in

@@ -2,5 +2,5 @@ coverage
 dirty-equals
 pytest
 pytest-mock
-pytest-sugar
+pytest-pretty
 pytest-timeout

requirements/testing.txt

@@ -6,38 +6,40 @@
 #
 attrs==22.1.0
     # via pytest
+commonmark==0.9.1
+    # via rich
 coverage==6.4.4
     # via -r requirements/testing.in
 dirty-equals==0.5.0
     # via -r requirements/testing.in
 iniconfig==1.1.1
     # via pytest
 packaging==21.3
-    # via
-    #   pytest
-    #   pytest-sugar
+    # via pytest
 pluggy==1.0.0
     # via pytest
 py==1.11.0
     # via pytest
+pygments==2.13.0
+    # via rich
 pyparsing==3.0.9
     # via packaging
 pytest==7.1.3
     # via
     #   -r requirements/testing.in
     #   pytest-mock
-    #   pytest-sugar
+    #   pytest-pretty
     #   pytest-timeout
 pytest-mock==3.8.2
     # via -r requirements/testing.in
-pytest-sugar==0.9.5
+pytest-pretty==0.0.1
     # via -r requirements/testing.in
 pytest-timeout==2.1.0
     # via -r requirements/testing.in
 pytz==2022.2.1
     # via dirty-equals
-termcolor==1.1.0
-    # via pytest-sugar
+rich==12.6.0
+    # via pytest-pretty
 tomli==2.0.1
     # via pytest
 typing-extensions==4.3.0