build: update build2version config

Author: boriel

.bumpversion.cfg

@@ -2,16 +2,16 @@
 current_version = 1.15.2
 
 [bumpversion:file:src/zxbc/version.py]
-search = VERSION = '{current_version}'
-replace = VERSION = '{new_version}'
+search = VERSION = "{current_version}"
+replace = VERSION = "{new_version}"
 
 [bumpversion:file:src/zxbasm/version.py]
-search = VERSION = '{current_version}'
-replace = VERSION = '{new_version}'
+search = VERSION = "{current_version}"
+replace = VERSION = "{new_version}"
 
 [bumpversion:file:setup.py]
-search = 'version': '{current_version}'
-replace = 'version': '{new_version}'
+search = "version": "{current_version}"
+replace = "version": "{new_version}"
 
 [bumpversion:file:pyproject.toml]
 search = version = "{current_version}"