chore(deps): update dflook/terraform-plan digest to 7878bff (#164)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/terraform-plan-01.yaml

@@ -35,6 +35,6 @@ jobs:
           aws-region: eu-west-1
 
       - name: Terraform plan
-        uses: dflook/terraform-plan@dc251c444763eed5defd065b866874b6343017ca # v2
+        uses: dflook/terraform-plan@7878bff63e2099cdc9be9a6f33cbbbf687f8f0fe # v2
         with:
           path: examples/01-minimal-aws-cloudformation-bootstrap

.github/workflows/terraform-plan-02.yaml

@@ -35,6 +35,6 @@ jobs:
           service_account: 'github-actions@pipetail-terraform.iam.gserviceaccount.com'
 
       - name: Terraform plan
-        uses: dflook/terraform-plan@dc251c444763eed5defd065b866874b6343017ca # v2
+        uses: dflook/terraform-plan@7878bff63e2099cdc9be9a6f33cbbbf687f8f0fe # v2
         with:
           path: examples/02-minimal-gcp-tf-bootstrap

.github/workflows/terraform-plan-03.yaml

@@ -35,6 +35,6 @@ jobs:
           aws-region: eu-west-1
 
       - name: Terraform plan
-        uses: dflook/terraform-plan@dc251c444763eed5defd065b866874b6343017ca # v2
+        uses: dflook/terraform-plan@7878bff63e2099cdc9be9a6f33cbbbf687f8f0fe # v2
         with:
           path: examples/03-aws-github-actions-oidc

.github/workflows/terraform-plan-04.yaml

@@ -35,6 +35,6 @@ jobs:
           aws-region: eu-west-1
 
       - name: Terraform plan
-        uses: dflook/terraform-plan@dc251c444763eed5defd065b866874b6343017ca # v2
+        uses: dflook/terraform-plan@7878bff63e2099cdc9be9a6f33cbbbf687f8f0fe # v2
         with:
           path: examples/04-aws-wireguard-vpn

.github/workflows/terraform-plan-05.yaml

@@ -34,6 +34,6 @@ jobs:
           aws-region: eu-west-1
 
       - name: Terraform plan
-        uses: dflook/terraform-plan@dc251c444763eed5defd065b866874b6343017ca # v2
+        uses: dflook/terraform-plan@7878bff63e2099cdc9be9a6f33cbbbf687f8f0fe # v2
         with:
           path: examples/05-aws-complete

.github/workflows/terraform-plan-06.yaml

@@ -34,6 +34,6 @@ jobs:
           aws-region: eu-west-1
 
       - name: Terraform plan
-        uses: dflook/terraform-plan@dc251c444763eed5defd065b866874b6343017ca # v2
+        uses: dflook/terraform-plan@7878bff63e2099cdc9be9a6f33cbbbf687f8f0fe # v2
         with:
           path: examples/06-minimal-aws-terraform-bootstrap