update ci and clarity issue locking in doc

Author: mschuchard

.circleci/config.yml

@@ -5,7 +5,7 @@ jobs:
   test:
     working_directory: /tmp/project
     docker:
-    - image: cimg/rust:1.86
+    - image: cimg/rust:1.94
     resource_class: small
     steps:
     - checkout

README.md

@@ -83,7 +83,7 @@ The metadata output from this step contains the number, url, title, state, label
 
 - `comment`: _optional_ The body of a comment to add to the issue. This occurs after the locking or unlocking, but before all other issue updates.
 
-- `lock`: _optional_ Whether the issue should be locked or unlocked. This occurs before all other issue updates.
+- `lock`: _optional_ Whether the issue should be locked or unlocked. This occurs before all other issue updates. The reason will be `Resolved`.
 
 - `state`: _optional_ The desired state of the updated issue. This can be either `open` or `closed`.