(maint) Updates PDK template

This commit updates the module to the latest, unreleased PDK
template in order to pull in a new container image for the auto
release GitHub Action.

Author: mhashizume

.devcontainer/devcontainer.json

@@ -5,7 +5,7 @@
 	"settings": {
 		"terminal.integrated.profiles.linux": {
 			"bash": {
-				"path": "bash",
+				"path": "bash"
 			}
 		}
 	},

.github/workflows/auto_release.yml

@@ -34,7 +34,7 @@ jobs:
         persist-credentials: false
 
     - name: "PDK Release prep"
-      uses: docker://puppet/iac_release:ci
+      uses: docker://puppet/pdk:2.6.1.0
       with:
         args: 'release prep --force'
       env:

metadata.json

@@ -22,6 +22,6 @@
     }
   ],
   "pdk-version": "2.6.1",
-  "template-url": "https://github.com/puppetlabs/pdk-templates#2.7.1",
-  "template-ref": "tags/2.7.1-0-g9a16c87"
+  "template-url": "https://github.com/puppetlabs/pdk-templates#main",
+  "template-ref": "heads/main-0-g0bbd7f1"
 }