feat(deps): bump golang from 1.22.4 to 1.23rc1 (#73)

Bumps golang from 1.22.4 to 1.23rc1.

---
updated-dependencies:
- dependency-name: golang
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.22.4 as builder
+FROM golang:1.23rc1 as builder
 WORKDIR /usr/src/vault-kubernetes-kms
 COPY go.mod go.sum ./
 RUN go mod download && go mod verify