Fix for dev container images build failure (#1746)

* Fix for dev container images build failures.

* Review comments implementation

Author: Kaniska244

src/ruby/README.md

@@ -9,7 +9,7 @@
 | *Categories* | Core, Languages |
 | *Image type* | Dockerfile |
 | *Published images* | mcr.microsoft.com/devcontainers/ruby |
-| *Available image variants* | 4 / 4-trixie, 4-bookworm, 4-bullseye, 3.4 / 3.4-trixie, 3.3 / 3.3-trixie, 3.2 / 3.2-trixie, 3-bookworm, 3.4-bookworm, 3.3-bookworm, 3.2-bookworm, 3-bullseye, 3.4-bullseye ([full list](https://mcr.microsoft.com/v2/devcontainers/ruby/tags/list)) |
+| *Available image variants* | 4 / 4-trixie, 4-bookworm, 3.4 / 3.4-trixie, 3.3 / 3.3-trixie, 3.2 / 3.2-trixie, 3-bookworm, 3.4-bookworm, 3.3-bookworm, 3.2-bookworm, 3-bullseye, 3.4-bullseye ([full list](https://mcr.microsoft.com/v2/devcontainers/ruby/tags/list)) |
 | *Published image architecture(s)* | x86-64, arm64/aarch64 for `trixie`, `bookworm` , and `bullseye` variants |
 | *Container host OS support* | Linux, macOS, Windows |
 | *Container OS* | Debian |
@@ -22,7 +22,7 @@ See **[history](history)** for information on the contents of published images.
 You can directly reference pre-built versions of `Dockerfile` by using the `image` property in `.devcontainer/devcontainer.json` or updating the `FROM` statement in your own  `Dockerfile` to one of the following. An example `Dockerfile` is included in this repository.
 
 - `mcr.microsoft.com/devcontainers/ruby`     (latest)
-- `mcr.microsoft.com/devcontainers/ruby:4`   (or `4-trixie`, `4-bookworm`, `4-bullseye` to pin to an OS version)
+- `mcr.microsoft.com/devcontainers/ruby:4`   (or `4-trixie`, `4-bookworm` to pin to an OS version)
 - `mcr.microsoft.com/devcontainers/ruby:3.4` (or `3.4-trixie`, `3.4-bookworm`, `3.4-bullseye` to pin to an OS version)
 - `mcr.microsoft.com/devcontainers/ruby:3.3` (or `3.3-trixie`, `3.3-bookworm`, `3.3-bullseye` to pin to an OS version)
 - `mcr.microsoft.com/devcontainers/ruby:3.2` (or `3.2-trixie`, `3.2-bookworm`, `3.2-bullseye` to pin to an OS version)

src/ruby/manifest.json

@@ -9,7 +9,6 @@
 		"3.4-bookworm",		
 		"3.3-bookworm",
 		"3.2-bookworm",
-		"4.0-bullseye",
 		"3.4-bullseye",		
 		"3.3-bullseye",
 		"3.2-bullseye"
@@ -26,10 +25,6 @@
 				"linux/amd64",
 				"linux/arm64"
 			],
-			"4.0-bullseye": [
-				"linux/amd64",
-				"linux/arm64"
-			],
 			"3.4-trixie": [
 				"linux/amd64",
 				"linux/arm64"
@@ -81,10 +76,6 @@
 				"ruby:${VERSION}-4-bookworm",
 				"ruby:${VERSION}-bookworm"
 			],
-			"4.0-bullseye": [
-				"ruby:${VERSION}-4-bullseye",
-				"ruby:${VERSION}-bullseye"
-			],
 			"3.4-trixie": [
 				"ruby:${VERSION}-3.4",
 				"ruby:${VERSION}-3.4-trixie"
@@ -115,6 +106,7 @@
 			"3.2-bullseye": [
 				"ruby:${VERSION}-3.2-bullseye"
 			]
+		}
 	},
 	"dependencies": {
 		"image": "ruby:${VARIANT}",
@@ -149,4 +141,3 @@
 		}
 	}
 }
-}