bump package version to 2.4.0 (#253)

Signed-off-by: Brian DeHamer <bdehamer@github.com>

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "actions/attest",
-  "version": "2.3.0",
+  "version": "2.4.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "actions/attest",
-      "version": "2.3.0",
+      "version": "2.4.0",
       "license": "MIT",
       "dependencies": {
         "@actions/attest": "^1.6.0",

package.json

@@ -1,7 +1,7 @@
 {
   "name": "actions/attest",
   "description": "Generate signed attestations for workflow artifacts",
-  "version": "2.3.0",
+  "version": "2.4.0",
   "author": "",
   "private": true,
   "homepage": "https://github.com/actions/attest",