fix pyproject.toml authors entry

pyproject.toml

 [project]
 name = "odoo_scripts"
-version = "15.3.0"
+version = "15.3.1"
 description = "Collection of scripts for Odoo"
 readme = "README.rst"
 requires-python = ">=3.6"
 license = {file = "LICENSE"}
-author = "XCG Consulting"
+authors = [
+  {name = "XCG Consulting"},
+]
 classifiers = [
   "Development Status :: 5 - Production/Stable",
   "Programming Language :: Python :: 3",
   "License :: OSI Approved :: MIT License",
   "Environment :: Console",
 ]
+keywords = ["odoo"]
 
 [build-system]
 requires = ["setuptools >= 40.6.0", "wheel"]
@@ -62,4 +65,4 @@ deps = coverage[toml]
 depends = coverage-report
 commands =
     coverage xml
-"""
\ No newline at end of file
+"""