Remove key input and use Import GPG GitHub Action instead

src/main.ts

@@ -2,13 +2,11 @@ import * as git from './git';
 import * as installer from './installer';
 import * as core from '@actions/core';
 import * as exec from '@actions/exec';
-import * as fs from 'fs';
 
 async function run(): Promise<void> {
   try {
     const version = core.getInput('version') || 'latest';
     const args = core.getInput('args');
-    const key = core.getInput('key');
     const workdir = core.getInput('workdir') || '.';
     const goreleaser = await installer.getGoReleaser(version);
 
@@ -33,13 +31,6 @@ async function run(): Promise<void> {
       }
     }
 
-    if (key) {
-      core.info('🔑 Importing signing key...');
-      let path = `${process.env.HOME}/key.asc`;
-      fs.writeFileSync(path, key, {mode: 0o600});
-      await exec.exec('gpg', ['--import', path]);
-    }
-
     core.info('🏃 Running GoReleaser...');
     await exec.exec(`${goreleaser} ${args}${snapshot}`);
   } catch (error) {