diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
deleted file mode 100644
index a4e6e67..0000000
--- a/.devcontainer/devcontainer.json
+++ /dev/null
@@ -1,14 +0,0 @@
-{
-  "image": "mcr.microsoft.com/devcontainers/typescript-node:20-buster",
-  "features": {
-    "ghcr.io/devcontainers-contrib/features/prettier:1": {
-      "version": "latest"
-    },
-    "ghcr.io/devcontainers-contrib/features/jest:2": { "version": "latest" }
-  },
-  "customizations": {
-    "vscode": {
-      "extensions": ["Orta.vscode-jest", "esbenp.prettier-vscode"]
-    }
-  }
-}
diff --git a/__tests__/lib/fieldMappings.test.cjs b/__tests__/lib/fieldMappings.test.cjs
index 377aecb..52ac0af 100644
--- a/__tests__/lib/fieldMappings.test.cjs
+++ b/__tests__/lib/fieldMappings.test.cjs
@@ -34,4 +34,6 @@ describe('constants', () => {
     core.setFailed.mockReset()
     core.setFailed.mockClear()
   })
-})
\ No newline at end of file
+})
+
+describe('
diff --git a/lib/fieldMappings.cjs b/lib/fieldMappings.cjs
index cdce219..1674a8e 100644
--- a/lib/fieldMappings.cjs
+++ b/lib/fieldMappings.cjs
@@ -90,7 +90,7 @@ const versionCompatibilityError =
 const mappings = {
   'schema-version': useSharedMappings(
     ['v2', 'v2.1', 'v2.2'],
-    mapToUsing('schema-version', (input, value) => ({
+    mapToUsing('schema-version', (_, value) => ({
       // We default to `v2` because later versions should specify the schema version.
       'schema-version': value ?? 'v2',
     }))