chore(deps): bump pulumi/pulumi-go from 3.255.0 to 3.256.0 (#1446)

Bumps pulumi/pulumi-go from 3.255.0 to 3.256.0.

---
updated-dependencies:
- dependency-name: pulumi/pulumi-go
  dependency-version: 3.256.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Dockerfile.chall-manager

@@ -29,7 +29,7 @@ RUN go build -cover \
 
 
 # Prod stage
-FROM pulumi/pulumi-go:3.255.0@sha256:deaa6abf41ad2b18968e12efbff444164ef211bf228130f893be0b2e5de7ae33
+FROM pulumi/pulumi-go:3.256.0@sha256:606cdf3e816dcb06933142a54958406aa82eeb06cb69312cbe2bef0d7fd520bb
 RUN pulumi login --local
 COPY --from=builder /go/bin/chall-manager /chall-manager
 COPY ./gen ./gen