Fix propertization for lists of dicts with literal block

previously_broken_but_now_correct:
  - bash: |
      echo "Properties following this block were broken"
    displayName: "Incorrectly propertized with face 'yaml-block-literal"

test-files/test-syntax-highlighting-list-of-dicts-containing-literal-block.yaml

@@ -0,0 +1,8 @@
+# Propertized incorrectly prior to PR
+example:
+  - key1: Correctly propertized
+    key2: |
+      Correctly propertized.
+  - key3: |
+      Correctly propertized
+    key4: Incorrectly propertized as part of preceding yaml-literal-block

yaml-mode.el

@@ -322,6 +322,8 @@ artificially limited to the value of
           (unless (looking-at yaml-blank-line-re)
             (setq min-level (min min-level (current-indentation))))
           (forward-line -1))
+        (when (looking-at-p " *- ")
+          (setq min-level (- min-level 2)))
         (cond
          ((and (< (current-indentation) min-level)
                (looking-at yaml-block-literal-re))