ensure default values are a YAML string

Author: 2bndy5

action.yml

@@ -44,7 +44,7 @@ inputs:
       - Set this option to a blank string (`''`) to use the platform's default installed version.
       - This value can also be a path to where the clang tools are installed (if using a custom install location).
     required: false
-    default: 20
+    default: '20'
   verbosity:
     description: |
       This controls the action's verbosity in the workflow's logs.
@@ -67,7 +67,7 @@ inputs:
           This feature requires special permissions to perform successfully.
           See our [documented permissions](permissions.md)
     required: false
-    default: false
+    default: 'false'
   files-changed-only:
     description: |
       Set this option to false to analyze any source files in the repo.
@@ -77,7 +77,7 @@ inputs:
           This feature requires special permissions to perform successfully.
           See our [documented permissions](permissions.md)
     required: false
-    default: true
+    default: 'true'
   ignore:
     description: |
       Set this option with string of path(s) to ignore.
@@ -135,7 +135,7 @@ inputs:
       See [`thread-comments`](#thread-comments), [`tidy-review`](#tidy-review),
       and [`format-review`](#format-review) options for further details.
     required: false
-    default: true
+    default: 'true'
   step-summary:
     description: |
       Set this option to true to append content as part of workflow's job summary.
@@ -149,12 +149,12 @@ inputs:
       > [!NOTE]
       > The [`no-lgtm`](#no-lgtm) option is _not_ applied to step summaries.
     required: false
-    default: false
+    default: 'false'
   file-annotations:
     description: |
       Set this option to false to disable the use of file annotations as feedback.
     required: false
-    default: true
+    default: 'true'
   database:
     description: The directory containing compilation database (like compile_commands.json) file.
     required: false
@@ -189,7 +189,7 @@ inputs:
       > [!NOTE]
       > The [`no-lgtm`](#no-lgtm) option is applicable to Pull Request reviews.
     required: false
-    default: false
+    default: 'false'
   format-review:
     description: |
       Set this option to `true` to enable Pull Request reviews from clang-format.
@@ -203,19 +203,19 @@ inputs:
       > [!NOTE]
       > The [`no-lgtm`](#no-lgtm) option is applicable to Pull Request reviews.
     required: false
-    default: false
+    default: 'false'
   passive-reviews:
     description: |
       Set this option to `true` to prevent Pull Request reviews from approving or requesting changes.
-    default: false
+    default: 'false'
     required: false
   jobs:
     description: |
       The number of jobs to run in parallel.
       If less than or equal to 0, the number of jobs is set to
       use the number of all available CPU cores.
     required: false
-    default: 0
+    default: '0'
   cache-enable:
     description: |-
       Controls the caching of cpp-linter dependencies.
@@ -225,7 +225,7 @@ inputs:
       Any cached assets are kept within the path to this action's source
       (not in the runner's workspace or temp directory).
     required: false
-    default: true
+    default: 'true'
 outputs:
   checks-failed:
     description: An integer that can be used as a boolean value to indicate if any checks failed by clang-tidy and clang-format.