Updates actions/checkout and pins to de0fac2e4500dabe0009e67214ff5f5447ce83dd

Updates actions/checkout from v4 to v6.0.2 and pins to a specific commit hash instead of the tag.

Author: Alex-Welsh

.github/workflows/merge.yml

@@ -16,7 +16,7 @@ jobs:
       ANSIBLE_VAULT_PASSWORD_FILE: .vault.txt
 
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
     - name: Set Ansible Vault password file
       run: |

.github/workflows/pr.yml

@@ -15,7 +15,7 @@ jobs:
       ANSIBLE_VAULT_PASSWORD_FILE: .vault.txt
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
     - name: Set Ansible Vault password file
       run: |