EOL Dotnet 6.0 (devcontainers#1237)

* EOL Dotnet 6.0

* Update readme.md

Author: Mathiyarasy

src/dotnet/README.md

@@ -9,7 +9,7 @@
 | *Categories* | Core, Languages |
 | *Image type* | Dockerfile |
 | *Published images* | mcr.microsoft.com/devcontainers/dotnet |
-| *Available image variants* | 9.0 /9.0-bookworm, 8.0 /8.0-bookworm, 9.0-noble, 8.0-noble, 8.0-jammy, 6.0 /6.0-bookworm, 6.0-bullseye, 6.0-jammy, 6.0-focal ([full list](https://mcr.microsoft.com/v2/devcontainers/dotnet/tags/list)) |
+| *Available image variants* | 9.0 /9.0-bookworm, 8.0 /8.0-bookworm, 9.0-noble, 8.0-noble, 8.0-jammy ([full list](https://mcr.microsoft.com/v2/devcontainers/dotnet/tags/list)) |
 | *Published image architecture(s)* | x86-64, arm64/aarch64 for `bookworm`, `bullseye`, `noble`, `jammy` variants |
 | *Container host OS support* | Linux, macOS, Windows |
 | *Container OS* | Ubuntu (`-focal`, `-jammy`, `-noble`), Debian (`-bullseye`, `-bookworm`) |
@@ -24,7 +24,6 @@ You can directly reference pre-built versions of `Dockerfile` by using the `imag
 - `mcr.microsoft.com/devcontainers/dotnet` (latest)
 - `mcr.microsoft.com/devcontainers/dotnet:9.0` (or `9.0-bookworm`, `9.0-noble` to pin to an OS version)
 - `mcr.microsoft.com/devcontainers/dotnet:8.0` (or `8.0-bookworm`, `8.0-noble`, `8.0-jammy` to pin to an OS version)
-- `mcr.microsoft.com/devcontainers/dotnet:6.0` (or `6.0-bookworm`, `6.0-bullseye`, `6.0-jammy`, `6.0-focal` to pin to an OS version)
 
 
 Refer to [this guide](https://containers.dev/guide/dockerfile) for more details.

src/dotnet/manifest.json

@@ -5,11 +5,7 @@
 		"9.0-noble",
 		"8.0-bookworm-slim",
 		"8.0-noble",
-		"8.0-jammy",
-		"6.0-bookworm-slim",
-		"6.0-bullseye-slim",
-		"6.0-jammy",
-		"6.0-focal"
+		"8.0-jammy"
 	],
 	"build": {
 		"latest": "9.0-bookworm-slim",
@@ -37,21 +33,6 @@
 			"8.0-jammy": [
 				"linux/amd64",
 				"linux/arm64"
-			],
-			"6.0-bookworm-slim": [
-				"linux/amd64",
-				"linux/arm64"
-			],
-			"6.0-bullseye-slim": [
-				"linux/amd64",
-				"linux/arm64"
-			],
-			"6.0-jammy": [
-				"linux/amd64",
-				"linux/arm64"
-			],
-			"6.0-focal": [
-				"linux/amd64"
 			]
 		},
 		"variantTags": {
@@ -62,13 +43,6 @@
 			"8.0-bookworm-slim": [
 				"dotnet:${VERSION}-8.0",
 				"dotnet:${VERSION}-8.0-bookworm"
-			],
-			"6.0-bookworm-slim": [
-				"dotnet:${VERSION}-6.0",
-				"dotnet:${VERSION}-6.0-bookworm"
-			],
-			"6.0-bullseye-slim": [
-				"dotnet:${VERSION}-6.0-bullseye"
 			]
 		}
 	},