fix: resolve restrict-template-expressions warnings

Use String(error) for unknown-typed catch variables in template literals.

Author: fengmk2

dist/index.mjs

@@ -39,6 +39,6 @@ export async function saveCache(): Promise<void> {
     info(`Cache saved with key: ${primaryKey}`);
   } catch (error) {
     // Don't fail the action if cache save fails
-    warning(`Failed to save cache: ${error}`);
+    warning(`Failed to save cache: ${String(error)}`);
   }
 }

src/cache-save.ts

@@ -47,7 +47,7 @@ async function printViteVersion(): Promise<void> {
     saveState(State.InstalledVersion, version);
     setOutput(Outputs.Version, version);
   } catch (error) {
-    warning(`Could not get vp version: ${error}`);
+    warning(`Could not get vp version: ${String(error)}`);
     setOutput(Outputs.Version, "unknown");
   }
 }

src/index.ts

@@ -26,7 +26,7 @@ export async function runViteInstall(inputs: Inputs): Promise<void> {
         info(`Successfully ran ${cmdStr}`);
       }
     } catch (error) {
-      setFailed(`Failed to run ${cmdStr}: ${error}`);
+      setFailed(`Failed to run ${cmdStr}: ${String(error)}`);
     } finally {
       endGroup();
     }

src/run-install.ts

@@ -96,7 +96,7 @@ async function getCommandOutput(command: string, args: string[]): Promise<string
     debug(`Command "${cmdStr}" exited with code ${result.exitCode}`);
     return undefined;
   } catch (error) {
-    warning(`Failed to run "${cmdStr}": ${error}`);
+    warning(`Failed to run "${cmdStr}": ${String(error)}`);
     return undefined;
   }
 }