caddy: v2.9.0-beta.3 release

Along with this, updating the `builder` images to Go 1.23 (on both Caddy `v2.8.4` and `v2.9.0-beta.3`).

https://github.com/caddyserver/caddy/releases/tag/v2.9.0-beta.3

https://github.com/caddyserver/caddy-docker/pull/377

library/caddy

@@ -1,9 +1,55 @@
 # this file is generated with gomplate:
 # template: https://github.com/caddyserver/caddy-docker/blob/e05f66898af9a0a694af637db2724f91d9d82ed7/stackbrew.tmpl
-# config context: https://github.com/caddyserver/caddy-docker/blob/645721b4b87b6c3a692641213853ce064eb82fe2/stackbrew-config.yaml
+# config context: https://github.com/caddyserver/caddy-docker/blob/507b6b921c822ccc33e56e40a12d0fcb5be0f61c/stackbrew-config.yaml
 Maintainers: Dave Henderson (@hairyhenderson),
              Francis Lavoie (@francislavoie)
 
+Tags: 2.9.0-beta.3-alpine, 2.9-alpine
+SharedTags: 2.9.0-beta.3, 2.9
+GitRepo: https://github.com/caddyserver/caddy-docker.git
+Directory: 2.9/alpine
+GitCommit: 507b6b921c822ccc33e56e40a12d0fcb5be0f61c
+Architectures: amd64, arm64v8, arm32v6, arm32v7, ppc64le, riscv64, s390x
+
+Tags: 2.9.0-beta.3-builder-alpine, 2.9-builder-alpine
+SharedTags: 2.9.0-beta.3-builder, 2.9-builder
+GitRepo: https://github.com/caddyserver/caddy-docker.git
+Directory: 2.9/builder
+GitCommit: 507b6b921c822ccc33e56e40a12d0fcb5be0f61c
+Architectures: amd64, arm64v8, arm32v6, arm32v7, ppc64le, riscv64, s390x
+
+Tags: 2.9.0-beta.3-windowsservercore-1809, 2.9-windowsservercore-1809
+SharedTags: 2.9.0-beta.3-windowsservercore, 2.9-windowsservercore, 2.9.0-beta.3, 2.9
+GitRepo: https://github.com/caddyserver/caddy-docker.git
+Directory: 2.9/windows/1809
+GitCommit: 507b6b921c822ccc33e56e40a12d0fcb5be0f61c
+Architectures: windows-amd64
+Constraints: windowsservercore-1809
+
+Tags: 2.9.0-beta.3-windowsservercore-ltsc2022, 2.9-windowsservercore-ltsc2022
+SharedTags: 2.9.0-beta.3-windowsservercore, 2.9-windowsservercore, 2.9.0-beta.3, 2.9
+GitRepo: https://github.com/caddyserver/caddy-docker.git
+Directory: 2.9/windows/ltsc2022
+GitCommit: 507b6b921c822ccc33e56e40a12d0fcb5be0f61c
+Architectures: windows-amd64
+Constraints: windowsservercore-ltsc2022
+
+Tags: 2.9.0-beta.3-builder-windowsservercore-1809, 2.9-builder-windowsservercore-1809
+SharedTags: 2.9.0-beta.3-builder, 2.9-builder
+GitRepo: https://github.com/caddyserver/caddy-docker.git
+Directory: 2.9/windows-builder/1809
+GitCommit: 507b6b921c822ccc33e56e40a12d0fcb5be0f61c
+Architectures: windows-amd64
+Constraints: windowsservercore-1809
+
+Tags: 2.9.0-beta.3-builder-windowsservercore-ltsc2022, 2.9-builder-windowsservercore-ltsc2022
+SharedTags: 2.9.0-beta.3-builder, 2.9-builder
+GitRepo: https://github.com/caddyserver/caddy-docker.git
+Directory: 2.9/windows-builder/ltsc2022
+GitCommit: 507b6b921c822ccc33e56e40a12d0fcb5be0f61c
+Architectures: windows-amd64
+Constraints: windowsservercore-ltsc2022
+
 Tags: 2.8.4-alpine, 2.8-alpine, 2-alpine, alpine
 SharedTags: 2.8.4, 2.8, 2, latest
 GitRepo: https://github.com/caddyserver/caddy-docker.git
@@ -15,7 +61,7 @@ Tags: 2.8.4-builder-alpine, 2.8-builder-alpine, 2-builder-alpine, builder-alpine
 SharedTags: 2.8.4-builder, 2.8-builder, 2-builder, builder
 GitRepo: https://github.com/caddyserver/caddy-docker.git
 Directory: 2.8/builder
-GitCommit: 645721b4b87b6c3a692641213853ce064eb82fe2
+GitCommit: 507b6b921c822ccc33e56e40a12d0fcb5be0f61c
 Architectures: amd64, arm64v8, arm32v6, arm32v7, ppc64le, riscv64, s390x
 
 Tags: 2.8.4-windowsservercore-1809, 2.8-windowsservercore-1809, 2-windowsservercore-1809, windowsservercore-1809
@@ -38,7 +84,7 @@ Tags: 2.8.4-builder-windowsservercore-1809, 2.8-builder-windowsservercore-1809,
 SharedTags: 2.8.4-builder, 2.8-builder, 2-builder, builder
 GitRepo: https://github.com/caddyserver/caddy-docker.git
 Directory: 2.8/windows-builder/1809
-GitCommit: fb6e8723745c60fe413a311b484704e8ce3fcfd3
+GitCommit: 507b6b921c822ccc33e56e40a12d0fcb5be0f61c
 Architectures: windows-amd64
 Constraints: windowsservercore-1809
 
@@ -46,7 +92,7 @@ Tags: 2.8.4-builder-windowsservercore-ltsc2022, 2.8-builder-windowsservercore-lt
 SharedTags: 2.8.4-builder, 2.8-builder, 2-builder, builder
 GitRepo: https://github.com/caddyserver/caddy-docker.git
 Directory: 2.8/windows-builder/ltsc2022
-GitCommit: fb6e8723745c60fe413a311b484704e8ce3fcfd3
+GitCommit: 507b6b921c822ccc33e56e40a12d0fcb5be0f61c
 Architectures: windows-amd64
 Constraints: windowsservercore-ltsc2022