remove test frozen version numbers

Author: jaypantone

tox.ini

@@ -46,25 +46,25 @@ description = run flake8 (linter)
 basepython = {[default]basepython}
 skip_install = True
 deps =
-    flake8==5.0.4
-    flake8-isort==5.0.0
+    flake8
+    flake8-isort
 commands =
     flake8 --isort-show-traceback comb_spec_searcher tests setup.py example.py
 
 [testenv:pylint]
 description = run pylint (static code analysis)
 basepython = {[default]basepython}
 deps =
-    pylint==2.15.5
+    pylint
 commands = pylint comb_spec_searcher
 
 [testenv:mypy]
 description = run mypy (static type checker)
 basepython = {[default]basepython}
 deps =
-    mypy==0.990
-    types-requests==2.28.11.4
-    types-tabulate==0.9.0
+    mypy
+    types-requests
+    types-tabulate
 commands =
     mypy