feat: add Linux distributions to the os context

src/docs/sdk/event-payloads/contexts.mdx

@@ -273,6 +273,14 @@ output of the `uname` syscall.
 system. For some well-known runtimes, Sentry will attempt to parse `name` and
 `version` from this string, if they are not explicitly given.
 
+`distribution`
+
+: _Optional_. An object that provides meta-data for Linux distributions. Contains the following keys:
+
+- `name`: A name that is stable for each distribution (examples: `ubuntu`, `rhel`, `alpine`).
+- `version`: _Optional_. Typically identifies at least the major release version number. Distributions with rolling releases only, will not provide a version.
+- `pretty_name`: _Optional_. Typically provides the full name, full version, and release alias (examples: `Ubuntu 22.04.4 LTS`, `Raspian GNU/Linux 10 (buster)`).
+
 ### Example OS Context
 
 The OS Context for the 3 major OSs should look like this:
@@ -295,8 +303,12 @@ The OS Context for the 3 major OSs should look like this:
   "linux": {
     "type": "os",
     "name": "Linux",
-    "version": "5.10.6",
-    "build": "arch1-1"
+    "version": "6.1.82(99.168.amzn2023.x86_64)",
+    "distribution": {
+      "name": "amzn",
+      "version": "2023",
+      "pretty_name": "Amazon Linux 2023.4.20240401"
+    }
   }
 }
 ```