Sync common files from infra repository (#129)

* Sync common files from infra repository

Synchronized from bootc-dev/infra@eb09fd5.

Signed-off-by: bootc-dev Bot <bot@bootc.dev>

* Mark ImageProxyConfig as non_exhaustive

Adding new fields to a publicly constructible struct is a semver
breaking change. Mark the struct as #[non_exhaustive] so that future
field additions are compatible, requiring users to use
`..Default::default()` when constructing the struct.

Fixes cargo-semver-checks failure from the insecure_policy field
addition.

Assisted-by: Claude Code (Opus 4.5)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Signed-off-by: Xiaofeng Wang <henrywangxf@me.com>

---------

Signed-off-by: bootc-dev Bot <bot@bootc.dev>
Signed-off-by: Xiaofeng Wang <henrywangxf@me.com>
Co-authored-by: bootc-dev Bot <bot@bootc.dev>
Co-authored-by: Xiaofeng Wang <henrywangxf@me.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

Author: 4 people

.bootc-dev-infra-commit.txt

@@ -1 +1 @@
-1c2a5bc48c08d077982cbae3bb9cd03e2923683a
+eb09fd52a83e77dad0465baded5c982c23bd5414

.github/actions/bootc-ubuntu-setup/action.yml

@@ -193,6 +193,7 @@ impl PipeId {
 
 /// Configuration for the proxy.
 #[derive(Debug, Default)]
+#[non_exhaustive]
 pub struct ImageProxyConfig {
     /// Path to container auth file; equivalent to `skopeo --authfile`.
     /// This conflicts with [`auth_data`].