Bump version number for 0.12

Author: Cadair

RELEASING.md

@@ -3,6 +3,7 @@
 To make a new release of pytest-mpl follow the following steps:
 
 * Update the chanelog with the date of the release, and ensure that all relevant PRs have changelog entries.
+* Update the version number in setup.cfg
 * Push the chanelog to master (via a PR)
 * Ensure the sdist and wheel GitHub Actions jobs succeeded on master after the merge of the changelog.
 * Tag the new release, using the format `vX.Y.X`.

setup.cfg

@@ -1,7 +1,7 @@
 [metadata]
 license_file = LICENSE
 name = pytest-mpl
-version = 0.11
+version = 0.12
 url = https://github.com/matplotlib/pytest-mpl
 author = Thomas Robitaille
 author_email = thomas.robitaille@gmail.com
@@ -49,4 +49,4 @@ max_line_length = 100
 balanced_wrapping = True
 length_sort = False
 length_sort_sections = stdlib
-line_length = 100
+line_length = 100