Disable image_optim workers in tests

They aren't needed for anything related to testing, and the warnings
about missing binaries adds noise to the test output.

diff --git a/config/image_optim/test.yml b/config/image_optim/test.yml
new file mode 100644 (file)
index 0000000..00584e5
--- /dev/null
+++ b/config/image_optim/test.yml
@@ -0,0 +1,11 @@
+skip_missing_workers: true
+advpng: false
+gifsicle: false
+jhead: false
+jpegoptim: false
+jpegtran: false
+optipng: false
+pngquant: false
+pngout: false
+pngcrush: false
+svgo: false