Promote @crobert-1 to Approver (open-telemetry#32009)

Curtis has been a very active contributor to the repository. The
maintainers propose to promote Curtis to Approver.

.github/auto_assign.yml

@@ -15,6 +15,7 @@ assigneeGroups:
     - astencel-sumo
     - atoulme
     - bryan-aguilar
+    - crobert-1
     - dashpole
     - songy23
     - fatsheep9146

CONTRIBUTING.md

@@ -240,6 +240,7 @@ to be included in the distributed otelcol-contrib binaries and docker images.
 
 The following GitHub users are the currently available sponsors, either by being an approver or a maintainer of the contrib repository. The list is ordered based on a random sort of the list of sponsors done live at the Collector SIG meeting on 27-Apr-2022 and serves as the seed for the round-robin selection of sponsors, as described in the section above.
 
+* [@crobert-1](https://github.com/crobert-1)
 * [@djaglowski](https://github.com/djaglowski)
 * [@codeboten](https://github.com/codeboten)
 * [@Aneurysm9](https://github.com/Aneurysm9)

README.md

@@ -72,7 +72,6 @@ See [CONTRIBUTING.md](CONTRIBUTING.md).
 Triagers ([@open-telemetry/collector-contrib-triagers](https://github.com/orgs/open-telemetry/teams/collector-contrib-triagers))
 
 - [Benedikt Bongartz](https://github.com/frzifus), Red Hat
-- [Curtis Robert](https://github.com/crobert-1), Splunk
 - [Goutham Veeramachaneni](https://github.com/gouthamve), Grafana
 - [Jared Tan](https://github.com/JaredTan95), DaoCloud
 - [Matt Wear](https://github.com/mwear), Lightstep
@@ -92,6 +91,7 @@ Approvers ([@open-telemetry/collector-contrib-approvers](https://github.com/orgs
 - [Anthony Mirabella](https://github.com/Aneurysm9), AWS
 - [Antoine Toulme](https://github.com/atoulme), Splunk
 - [Bryan Aguilar](https://github.com/bryan-aguilar), AWS
+- [Curtis Robert](https://github.com/crobert-1), Splunk
 - [David Ashpole](https://github.com/dashpole), Google
 - [Yang Song](https://github.com/songy23), DataDog
 - [Ziqi Zhao](https://github.com/fatsheep9146), Alibaba