chore: kfc release-candidate for http2 watch (#1239)

## Description

This is an RC for testing in UDS Core staging env. It adds the KFC
dependency update and updates the `WatchCfg`


## Related Issue

Fixes #1229 
<!-- or -->
Relates to #

## Type of change

- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [x] Other (security config, docs update, etc)

## Checklist before merging
- [x] Unit,
[Journey](https://github.com/defenseunicorns/pepr/tree/main/journey),
[E2E Tests](https://github.com/defenseunicorns/pepr-excellent-examples),
[docs](https://github.com/defenseunicorns/pepr/tree/main/docs),
[adr](https://github.com/defenseunicorns/pepr/tree/main/adr) added or
updated as needed
- [x] [Contributor Guide
Steps](https://docs.pepr.dev/main/contribute/#submitting-a-pull-request)
followed

Signed-off-by: Case Wylie <cmwylie19@defenseunicorns.com>

package.json

@@ -42,7 +42,7 @@
     "express": "4.21.0",
     "fast-json-patch": "3.1.1",
     "json-pointer": "^0.6.2",
-    "kubernetes-fluent-client": "3.0.4",
+    "kubernetes-fluent-client": "4.0.0-rc-http2-watch",
     "pino": "9.4.0",
     "pino-pretty": "11.2.2",
     "prom-client": "15.1.3",

src/lib/watch-processor.ts

@@ -49,6 +49,7 @@ export function getOrCreateQueue(obj: KubernetesObject) {
 
 // Watch configuration
 const watchCfg: WatchCfg = {
+  useHTTP2: process.env.PEPR_HTTP2_WATCH === "true",
   resyncFailureMax: process.env.PEPR_RESYNC_FAILURE_MAX ? parseInt(process.env.PEPR_RESYNC_FAILURE_MAX, 10) : 5,
   resyncDelaySec: process.env.PEPR_RESYNC_DELAY_SECONDS ? parseInt(process.env.PEPR_RESYNC_DELAY_SECONDS, 10) : 5,
   lastSeenLimitSeconds: process.env.PEPR_LAST_SEEN_LIMIT_SECONDS