Add some new tests

__tests__/fixtures/all_options.yml

@@ -0,0 +1,14 @@
+label1:
+  - any:
+      - changed-files: ['glob']
+      - head-branch: ['regexp']
+      - base-branch: ['regexp']
+  - all:
+      - changed-files: ['glob']
+      - head-branch: ['regexp']
+      - base-branch: ['regexp']
+
+label2:
+  - changed-files: ['glob']
+  - head-branch: ['regexp']
+  - base-branch: ['regexp']

__tests__/fixtures/only_pdfs.yml

@@ -1,3 +1,2 @@
 touched-a-pdf-file:
-  - changed-files:
-      - any: ['*.pdf']
+  - changed-files: ['*.pdf']