Use quotes while adding entires to tool.versioneer in pyproject.toml

Author: IshaanDesai

pyproject.toml

@@ -3,9 +3,9 @@
 requires = ["setuptools", "wheel", "Cython>=0.29", "packaging", "pip>=19.0.0", "numpy", "mpi4py", "pkgconfig"]
 
 [tool.versioneer]
-VCS = git
-style = pep440
-versionfile_source = precice/_version.py
-versionfile_build = precice/_version.py
-tag_prefix =
-parentdir_prefix = precice-
+VCS = "git"
+style = "pep440"
+versionfile_source = "precice/_version.py"
+versionfile_build = "precice/_version.py"
+tag_prefix = ""
+parentdir_prefix = "precice-"