Move pyinstaller to a real dev dependency instead of ad-hoc install

Author: spalmurray

codecov-cli/pyproject.toml

@@ -23,6 +23,7 @@ dependencies = [
 [dependency-groups]
 dev = [
     "pre-commit==3.*",
+    "pyinstaller>=6.14.2",
     "pytest==7.*",
     "pytest-asyncio==0.21.1",
     "pytest-cov==4.*",