update test job to use ubuntu-24.04

Author: shogo82148

docs/checks.md

@@ -2286,7 +2286,7 @@ on:
 
 jobs:
   test:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
       - name: Send data
         # ERROR: uri is typo of url
@@ -2309,7 +2309,7 @@ test.yaml:23:22: property "credentials" is not defined in object type {actions_r
    |                      ^~~~~~~~~~~~~~~~~~~
 ```
 
-[Playground](https://rhysd.github.io/actionlint/#eNp8UL1q80AQ7PUUU3ygSsJ8pLo+VUIC+amNdNqEi897Yu82Rph792CdIpkU7pbZ+dnZwKYCTkEOHz6c9rbz/gIAjkdNscyAiv8dgYGiFTcmF9ignoIK3l8e63WfppEMYhLHnwvo1R6mPeuxJ7lpNBNRiH8dCzqDkazQdp4VGoiT625fudHqqvoK/axPFFNRiXJsLmztlZM2/3ft7q7EJRrXsAbcHcnglXjA0KVujRRlA6vi8e98Xj7YqjjkjGa4Bq//gZxXB+LvrQHw9vxw/2Rm4dK43TpE5PwTAAD//6lWhKI=)
+[Playground](https://rhysd.github.io/actionlint/#eNp8UL1q80AQ7PUUU3ygSuIjuLo+VUIC+amNdNqEi897Yu82Rph792CdIpkU7pbZ+dnZwKYCTkEOHz6c9rbz/gIAjkdNscyAiv8dgYGiFTcmF9ignoIK3l8e63WfppEMYhLHnwvo1R6mPeuxJ7lpNBNRiH8dCzqDkazQdp4VGoiT625fudHqqvoK/axPFFNRiXJsLmztlZM2d7v2/67EJRrXsAbcHcnglXjA0KVujRRlA6vi8e98Xj7YqjjkjGa4Bq//gZxXB+LvrQHw9vxw/2Rm4dK43TpE5PwTAAD//6vehKY=)
 
 Inputs of reusable workflow calls are set to `inputs.*` properties following the definitions at `on.workflow_call.inputs`.
 And in a job of a reusable workflow, `secrets.*` are passed from caller of the workflow so it is set following the definitions at