Bump mypy version and Python runtime

.github/workflows/flake8.yml

@@ -35,7 +35,7 @@ jobs:
         if: steps.changes.outputs.code == 'true'
         uses: "actions/setup-python@v5"
         with:
-          python-version: "3.6"
+          python-version: "3.8"
 
       - name: Install dependencies 🔧
         if: steps.changes.outputs.code == 'true'

.github/workflows/mypy.yml

@@ -40,7 +40,7 @@ jobs:
         if: steps.changes.outputs.code == 'true'
         uses: "actions/setup-python@v5"
         with:
-          python-version: "3.6"
+          python-version: "3.8"
 
       - name: Install dependencies (Linux) 🔧
         if: ${{ matrix.os == 'ubuntu-20.04' && steps.changes.outputs.code == 'true' }}

pyproject.toml

@@ -162,7 +162,7 @@ autodoc_exclude_members = [
 ]
 
 [tool.mypy]
-python_version = "3.6"
+python_version = "3.8"
 namespace_packages = true
 check_untyped_defs = true
 warn_unused_ignores = true

repo_helper.yml

@@ -18,7 +18,8 @@ platforms:
   - Windows
   - Linux
 
-python_deploy_version: 3.6
+python_deploy_version: 3.8
+mypy_version: "1.8.0"
 
 # Versions to run tests for
 python_versions:

tox.ini

@@ -32,7 +32,7 @@ requires =
 [envlists]
 test = py36, py37, py38, py39, py310, py311, py312
 qa = mypy, lint
-cov = py36, coverage
+cov = py38, coverage
 
 [testenv:.package]
 setenv =
@@ -71,7 +71,7 @@ commands =
     check-wheel-contents dist/
 
 [testenv:lint]
-basepython = python3.6
+basepython = python3.8
 changedir = {toxinidir}
 ignore_errors = True
 skip_install = True
@@ -101,33 +101,33 @@ deps =
 commands = python3 -m flake8_rst_docstrings_sphinx src/pyms_nist_search tests MoNA_GCMS_Library --allow-toolbox {posargs}
 
 [testenv:perflint]
-basepython = python3.6
+basepython = python3.8
 changedir = {toxinidir}
 ignore_errors = True
 skip_install = True
 deps = perflint
 commands = python3 -m perflint pyms_nist_search {posargs}
 
 [testenv:mypy]
-basepython = python3.6
+basepython = python3.8
 ignore_errors = True
 changedir = {toxinidir}
 deps =
-    mypy==0.971
+    mypy==1.8.0
     -r{toxinidir}/tests/requirements.txt
     -r{toxinidir}/stubs.txt
 commands = mypy src/pyms_nist_search tests MoNA_GCMS_Library {posargs}
 
 [testenv:pyup]
-basepython = python3.6
+basepython = python3.8
 skip_install = True
 ignore_errors = True
 changedir = {toxinidir}
 deps = pyupgrade-directories
 commands = pyup_dirs src/pyms_nist_search tests MoNA_GCMS_Library --py36-plus --recursive
 
 [testenv:coverage]
-basepython = python3.6
+basepython = python3.8
 skip_install = True
 ignore_errors = True
 whitelist_externals = /bin/bash