Promote @bryan-aguilar to Approver (open-telemetry#29736)

**Description:** 
@bryan-aguilar has been showing good judgement while helping out as a
triager, codeowner, and community member. He has
[authored](https://github.com/open-telemetry/opentelemetry-collector-contrib/pulls/bryan-aguilar)
and
[reviewed](https://github.com/open-telemetry/opentelemetry-collector-contrib/pulls?q=is%3Apr+is%3Aopen+reviewed-by%3Abryan-aguilar+)
lots of PRs and would be a big help as an Approver.

@bryan-aguilar please approve this PR if you'd like to be an Approver
for Collector Contrib

.github/auto_assign.yml

@@ -14,6 +14,7 @@ assigneeGroups:
     - Aneurysm9
     - astencel-sumo
     - atoulme
+    - bryan-aguilar
     - dashpole
     - songy23
     - fatsheep9146

CONTRIBUTING.md

@@ -232,6 +232,7 @@ The following GitHub users are the currently available sponsors, either by being
 * [@jpkrohling](https://github.com/jpkrohling)
 * [@dashpole](https://github.com/dashpole)
 * [@TylerHelmuth](https://github.com/TylerHelmuth)
+* [@Bryan Aguilar](https://github.com/bryan-aguilar)
 
 Whenever a sponsor is picked from the top of this list, please move them to the bottom.
 

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
-- [Bryan Aguilar](https://github.com/bryan-aguilar), AWS
 - [Curtis Robert](https://github.com/crobert-1), Splunk
 - [Gabriel Aszalos](https://github.com/gbbr), DataDog
 - [Goutham Veeramachaneni](https://github.com/gouthamve), Grafana
@@ -92,6 +91,7 @@ Approvers ([@open-telemetry/collector-contrib-approvers](https://github.com/orgs
 - [Andrzej Stencel](https://github.com/astencel-sumo), Sumo Logic
 - [Anthony Mirabella](https://github.com/Aneurysm9), AWS
 - [Antoine Toulme](https://github.com/atoulme), Splunk
+- [Bryan Aguilar](https://github.com/bryan-aguilar), AWS
 - [David Ashpole](https://github.com/dashpole), Google
 - [Yang Song](https://github.com/songy23), DataDog
 - [Ziqi Zhao](https://github.com/fatsheep9146), Alibaba