chore(releasing): Prepare v0.31.0 release

Signed-off-by: Jesse Szwedko <jesse.szwedko@datadoghq.com>

distribution/install.sh

@@ -12,7 +12,7 @@ set -u
 
 # If PACKAGE_ROOT is unset or empty, default it.
 PACKAGE_ROOT="${PACKAGE_ROOT:-"https://packages.timber.io/vector"}"
-VECTOR_VERSION="0.30.0"
+VECTOR_VERSION="0.31.0"
 _divider="--------------------------------------------------------------------------------"
 _prompt=">>>"
 _indent="   "

website/content/en/highlights/2023-07-05-0-31-0-upgrade-guide.md

@@ -2,7 +2,7 @@
 date: "2023-07-05"
 title: "0.31 Upgrade Guide"
 description: "An upgrade guide that addresses breaking changes in 0.31.0"
-authors: ["tobz"]
+authors: ["stephenwakely", "tobz"]
 release: "0.31.0"
 hide_on_release_notes: false
 badges:
@@ -12,6 +12,7 @@ badges:
 Vector's 0.31.0 release includes **breaking changes**:
 
 1. [Removal of various deprecated internal metrics](#deprecated-internal-metrics)
+1. [`component_received_event_bytes_total` and `component_sent_event_bytes_total` consistently use estimated JSON size of the event](#event_json_size)
 
 We cover them below to help you upgrade quickly:
 
@@ -49,3 +50,14 @@ A small note is that a small number of components still emit some of these metri
 additional tags and information that is disallowed by the Component Specification. They will be
 removed in a future version once we can rectify those discrepancies, but they are effectively
 removed as of this release: you cannot depend on them still existing.
+
+#### `component_received_event_bytes_total` and `component_sent_event_bytes_total` consistently use estimated JSON size of the event {#event_json_size}
+
+Prior to this Version, metrics emitted by Vector were inconsistently measuring
+the byte size of the events that were being sent and received. These metrics
+have been updated for all components so they always emit an estimate of the size
+of the event should it be serialized to JSON.
+
+Measuring the events like this allows a consistent measurement to be applied
+across all components regardless of how the source or sink serializes the event
+when connecting to the external service.

website/content/en/releases/0.31.0.md

@@ -0,0 +1,4 @@
+---
+title: Vector v0.31.0 release notes
+weight: 21
+---

website/cue/reference/administration/interfaces/kubectl.cue

@@ -19,7 +19,7 @@ administration: interfaces: kubectl: {
 	role_implementations: [Name=string]: {
 		commands: {
 			_deployment_variant:       string
-			_vector_version:           "0.30"
+			_vector_version:           "0.31"
 			_namespace:                string | *"vector"
 			_controller_resource_type: string
 			_controller_resource_name: string | *_deployment_variant