Fix our nightly AWS tests (zarf-dev#1740)

## Description

This fixes our nightly AWS tests by allowing them to correctly read the
secrets keys.

## Related Issue

Fixes #N/A

## Type of change

- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [X] Other (security config, docs update, etc)

## Checklist before merging

- [X] Test, docs, adr added or updated as needed
- [X] [Contributor Guide
Steps](https://github.com/defenseunicorns/zarf/blob/main/CONTRIBUTING.md#developer-workflow)
followed

.github/workflows/nightly-ecr.yml

@@ -32,7 +32,10 @@ jobs:
         run: make build-cli-linux-amd
 
       - name: Configure AWS Credentials
-        uses: ./.github/actions/aws-nightly-creds
+        uses: aws-actions/configure-aws-credentials@e1e17a757e536f70e52b5a12b2e8d1d1c60e04ef # v2.0.0
+        with:
+          role-to-assume: ${{ secrets.AWS_NIGHTLY_ROLE }}
+          aws-region: us-east-1
 
       # NOTE: The aws cli will need to be explicitly installed on self-hosted runners
       - name: Login to the ECR Registry

.github/workflows/nightly-eks.yml

@@ -40,7 +40,11 @@ jobs:
         uses: ./.github/actions/packages
 
       - name: Configure AWS Credentials
-        uses: ./.github/actions/aws-nightly-creds
+        uses: aws-actions/configure-aws-credentials@e1e17a757e536f70e52b5a12b2e8d1d1c60e04ef # v2.0.0
+        with:
+          role-to-assume: ${{ secrets.AWS_NIGHTLY_ROLE }}
+          aws-region: us-east-1
+          role-duration-seconds: 14400
 
       - name: Build the eks package
         run: ./build/zarf package create packages/distros/eks -o build --confirm

src/pkg/packager/common.go

@@ -495,16 +495,19 @@ func (p *Packager) validatePackageChecksums() error {
 
 // validatePackageArchitecture validates that the package architecture matches the target cluster architecture.
 func (p *Packager) validatePackageArchitecture() error {
-	// Attempt to connect to a cluster to get the architecture.
-	if cluster, err := cluster.NewCluster(); err == nil {
-		clusterArch, err := cluster.Kube.GetArchitecture()
-		if err != nil {
-			return lang.ErrUnableToCheckArch
-		}
+	// Ignore this check if the architecture is explicitly "multi"
+	if p.arch != "multi" {
+		// Attempt to connect to a cluster to get the architecture.
+		if cluster, err := cluster.NewCluster(); err == nil {
+			clusterArch, err := cluster.Kube.GetArchitecture()
+			if err != nil {
+				return lang.ErrUnableToCheckArch
+			}
 
-		// Check if the package architecture and the cluster architecture are the same.
-		if p.arch != clusterArch {
-			return fmt.Errorf(lang.CmdPackageDeployValidateArchitectureErr, p.arch, clusterArch)
+			// Check if the package architecture and the cluster architecture are the same.
+			if p.arch != clusterArch {
+				return fmt.Errorf(lang.CmdPackageDeployValidateArchitectureErr, p.arch, clusterArch)
+			}
 		}
 	}