Install Renovate on repos that have merged Renovate config

[trask]

Tracking follow-ups to https://github.com/open-telemetry/sig-security/issues/115

• [x] sig-end-user
• [x] ~sig-mainframe~ archived
• [x] sig-contributor-experience
• [ ] sig-developer-experience
• [x] sig-project-infra
• [x] opentelemetry-specification
• [x] opentelemetry-go-vanityurls
• [ ] opentelemetry-python-contrib
• [x] opentelemetry-swift
• [x] opentelemetry-network
• [x] assign-reviewers-action
• [x] opamp-spec
• [ ] opentelemetry-sandbox-web-js
• [x] opentelemetry-configuration
• [x] opentelemetry-network-build-tools
• [ ] stackoverflow2slack (planning to archive: https://github.com/open-telemetry/stackoverflow2slack/pull/19)
• [x] ~.allstar~ archived
• [x] opentelemetry-ebpf-profiler
• [x] govanityurls
• [x] ~gh-manager~ archived
• [x] opentelemetry-go-compile-instrumentation
• [x] opentelemetry-ebpf-instrumentation
• [x] .github
• [x] opentelemetry-proto