Merge branch 'L2SS-1427-install-dependencies' into 'main'

L2SS-1427: Consolidate requirement definitions and ensure install

Closes L2SS-1427

See merge request !52

pyproject.toml

 [build-system]
-requires = ['setuptools>=42', 'wheel']
+requires = ['setuptools>=62.6', 'wheel']
 build-backend = 'setuptools.build_meta'

requirements.txt

 # Order does matter
+importlib-metadata>=0.12, <5.0;python_version<"3.8"
+pip>=1.5
 PyTango>=9.4.0 # LGPL v3
 requests>=2.0 # Apache 2
 numpy>=1.21.0 # BSD

setup.cfg

@@ -31,9 +31,7 @@ classifiers =
 include_package_data = true
 packages = find:
 python_requires = >=3.7
-install_requires =
-    importlib-metadata>=0.12, <5.0;python_version<"3.8"
-    pip>=1.5
+install_requires = file: requirements.txt
 
 [options.entry_points]
 console_scripts =