chore(Rust): Remove Debian Buster support

[Muscraft]

This removes support for Debian Buster from the Rust Official Image.

See #17091

[github-actions]

Diff for e5cc7ce:

diff --git a/_bashbrew-cat b/_bashbrew-cat
index be75f4e..396b3f5 100644
--- a/_bashbrew-cat
+++ b/_bashbrew-cat
@@ -21,11 +21,6 @@ Architectures: amd64, arm32v7, arm64v8, i386, ppc64le, s390x
 GitCommit: ea4aab0935fcafe4956d6206f3ecde84ffddf800
 Directory: 1.79.0/bullseye
 
-Tags: 1-buster, 1.79-buster, 1.79.0-buster, buster
-Architectures: amd64, arm32v7, arm64v8, i386
-GitCommit: ea4aab0935fcafe4956d6206f3ecde84ffddf800
-Directory: 1.79.0/buster
-
 Tags: 1-slim-bookworm, 1.79-slim-bookworm, 1.79.0-slim-bookworm, slim-bookworm, 1-slim, 1.79-slim, 1.79.0-slim, slim
 Architectures: amd64, arm32v7, arm64v8, i386, ppc64le, s390x
 GitCommit: ea4aab0935fcafe4956d6206f3ecde84ffddf800
@@ -35,8 +30,3 @@ Tags: 1-slim-bullseye, 1.79-slim-bullseye, 1.79.0-slim-bullseye, slim-bullseye
 Architectures: amd64, arm32v7, arm64v8, i386, ppc64le, s390x
 GitCommit: ea4aab0935fcafe4956d6206f3ecde84ffddf800
 Directory: 1.79.0/bullseye/slim
-
-Tags: 1-slim-buster, 1.79-slim-buster, 1.79.0-slim-buster, slim-buster
-Architectures: amd64, arm32v7, arm64v8, i386
-GitCommit: ea4aab0935fcafe4956d6206f3ecde84ffddf800
-Directory: 1.79.0/buster/slim
diff --git a/_bashbrew-list b/_bashbrew-list
index f262be0..0438986 100644
--- a/_bashbrew-list
+++ b/_bashbrew-list
@@ -4,41 +4,33 @@ rust:1-alpine3.19
 rust:1-alpine3.20
 rust:1-bookworm
 rust:1-bullseye
-rust:1-buster
 rust:1-slim
 rust:1-slim-bookworm
 rust:1-slim-bullseye
-rust:1-slim-buster
 rust:1.79
 rust:1.79-alpine
 rust:1.79-alpine3.19
 rust:1.79-alpine3.20
 rust:1.79-bookworm
 rust:1.79-bullseye
-rust:1.79-buster
 rust:1.79-slim
 rust:1.79-slim-bookworm
 rust:1.79-slim-bullseye
-rust:1.79-slim-buster
 rust:1.79.0
 rust:1.79.0-alpine
 rust:1.79.0-alpine3.19
 rust:1.79.0-alpine3.20
 rust:1.79.0-bookworm
 rust:1.79.0-bullseye
-rust:1.79.0-buster
 rust:1.79.0-slim
 rust:1.79.0-slim-bookworm
 rust:1.79.0-slim-bullseye
-rust:1.79.0-slim-buster
 rust:alpine
 rust:alpine3.19
 rust:alpine3.20
 rust:bookworm
 rust:bullseye
-rust:buster
 rust:latest
 rust:slim
 rust:slim-bookworm
 rust:slim-bullseye
-rust:slim-buster
diff --git a/_bashbrew-list-build-order b/_bashbrew-list-build-order
index e253085..53fbb59 100644
--- a/_bashbrew-list-build-order
+++ b/_bashbrew-list-build-order
@@ -1,8 +1,6 @@
 rust:alpine
 rust:alpine3.19
 rust:bullseye
-rust:buster
 rust:latest
 rust:slim
 rust:slim-bullseye
-rust:slim-buster
diff --git a/rust_buster/Dockerfile b/rust_buster/Dockerfile
deleted file mode 100644
index ddf6a30..0000000
diff --git a/rust_slim-buster/Dockerfile b/rust_slim-buster/Dockerfile
deleted file mode 100644
index 398b454..0000000

Relevant Maintainers:

• rust: @sfackler @Muscraft