Adding --use-image-digests changes the indentation of the rendered csv yaml file

Bug Report

What did you do?

When adding --use-image-digests the indentation of the rendered bundle is different than when running it without.

What did you expect to see?

Same indentation, since only the tag vs hashes should be different

Environment

$ operator-sdk version

operator-sdk version: "v1.42.1-1-g3500745e", commit: "3500745ef0320ca80da39424b1e56e4dea8bcb44", kubernetes version: "v1.33.1", go version: "go1.26.1-X:nodwarf5", GOOS: "linux", GOARCH: "amd64"

Additional context

Here is a small reproducer:

TMPDIR=$(mktemp -d)

mkdir -p "$TMPDIR/input"
cat > "$TMPDIR/input/deployment.yaml" <<'EOF'
apiVersion: apps/v1
kind: Deployment
metadata:
  name: controller-manager
spec:
  replicas: 1
  selector:
    matchLabels:
      app: manager
  template:
    metadata:
      labels:
        app: manager
    spec:
      containers:
      - name: manager
        image: busybox:1.36
        command: ["/bin/sh"]
EOF

./build/operator-sdk generate bundle \
  --input-dir "$TMPDIR/input" \
  --output-dir "$TMPDIR/bundle-no-digest" \
  --package test-operator --version 0.0.1 -q

./build/operator-sdk generate bundle \
  --input-dir "$TMPDIR/input" \
  --output-dir "$TMPDIR/bundle-digest" \
  --package test-operator --version 0.0.1 \
  --use-image-digests -q

diff -u "$TMPDIR/bundle-no-digest/manifests/test-operator.clusterserviceversion.yaml" \
        "$TMPDIR/bundle-digest/manifests/test-operator.clusterserviceversion.yaml"

You will see a bunch of hunks like the following:

--- /tmp/tmp.Of5KyHUgTJ/bundle-no-digest/manifests/test-operator.clusterserviceversion.yaml     2026-03-17
12:40:01.359221675 +0100
+++ /tmp/tmp.Of5KyHUgTJ/bundle-digest/manifests/test-operator.clusterserviceversion.yaml        2026-03-17
12:40:02.412229336 +0100
@@ -15,49 +15,52 @@
   description: Test Operator description. TODO.
   displayName: Test Operator
   icon:
-  - base64data: ""
-    mediatype: ""
+    - base64data: ""
+      mediatype: ""

Start with the operator-sdk generate bundle command and reproduce the issue using the provided shell script, comparing the two generated clusterserviceversion.yaml files with diff -u. Trace how --use-image-digests renders the bundle and verify that only image tags versus digests differ, while YAML indentation remains identical.