Improve test running

This commit contains multiple related changes:

- Update `dev` dependencies as much as possible
  - The pinned versions did not work with Python 3.11, but using the
    latest versions does not work with Python 3.7. The new versions work
    for both Python 3.7 and 3.11.
- Pin `black` and `isort` versions
  - Unlike the other `dev` dependencies, which are specified with `==`,
    these two dependencies were specified with `>=`. I pinned these to
    specific versions to match the other dependencies and limit
    breakage.
- Update `pip` in `test-pr.yml`
  - The version of `pip` shipped in GitHub Actions shows warnings that
    are fixed by upgrading to the latest supported version.

Author: aphedges

.github/workflows/test-pr.yml

@@ -17,6 +17,7 @@ jobs:
           python-version: "3.7"
       - name: Install daidepp
         run: |
+          pip install -U pip
           pip install -e .[dev]
       - name: Test
         run: |

setup.cfg

@@ -21,17 +21,17 @@ where = src
 
 [options.extras_require]
 dev =
-    black>=22.8.0
-    docformatter==1.4
-    isort>=5.10.1
-    pydocstyle==6.1.1
-    pylint==2.12.2
-    pytest==7.0.0
-    pytest-black==0.3.12
-    pytest-cov==3.0.0
-    pytest-dependency==0.5.1
-    pytest-mypy==0.9.1
-    pytest-timeout==2.1.0
+    black==23.3.0
+    docformatter==1.7.5
+    isort==5.11.5
+    pydocstyle==6.3.0
+    pylint==2.17.7
+    pytest==7.4.4
+    pytest-black==0.6.0
+    pytest-cov==4.1.0
+    pytest-dependency==0.6.0
+    pytest-mypy==0.10.3
+    pytest-timeout==2.3.1
 
 [isort]
 multi_line_output = 3