Bump golang from fcae9e0 to 86a3c48 in /tests (#2633)

Bumps golang from `fcae9e0` to `86a3c48`.

---
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>

tests/Dockerfile

@@ -1,5 +1,5 @@
 # The Dockerfile's resulting image is purpose-built for executing Jaeger Operator e2e tests within the OpenShift release (https://github.com/openshift/release) using Prow CI.
-FROM golang@sha256:fcae9e0e7313c6467a7c6632ebb5e5fab99bd39bd5eb6ee34a211353e647827a
+FROM golang@sha256:86a3c48a61915a8c62c0e1d7594730399caa3feb73655dfe96c7bc17710e96cf
 
 # Set the user to root
 USER root