[Otel Onboarding] Replace setcap with running with sudo (#192585)

Replace `setcap` with running the collector with `sudo` on Linux as it
follows best practices.

Later on, this can be replaced by instructions to install the collector
instead.

x-pack/plugins/observability_solution/observability_onboarding/public/application/quickstart_flows/otel_logs/index.tsx

@@ -548,10 +548,8 @@ spec:
 
 curl --output elastic-distro-${agentVersion}-linux-$arch.tar.gz --url https://${AGENT_CDN_BASE_URL}/elastic-agent-${agentVersion}-linux-$arch.tar.gz --proto '=https' --tlsv1.2 -fOL && mkdir -p elastic-distro-${agentVersion}-linux-$arch && tar -xvf elastic-distro-${agentVersion}-linux-$arch.tar.gz -C "elastic-distro-${agentVersion}-linux-$arch" --strip-components=1 && cd elastic-distro-${agentVersion}-linux-$arch
 
-sudo setcap 'cap_dac_read_search=ep' ./data/elastic-agent-*/elastic-agent
-
 rm ./otel.yml && cp ./otel_samples/platformlogs_hostmetrics.yml ./otel.yml && mkdir -p ./data/otelcol && sed -i 's#\\\${env:STORAGE_DIR}#'"$PWD"/data/otelcol'#g' ./otel.yml && sed -i 's#\\\${env:ELASTIC_ENDPOINT}#${setup?.elasticsearchUrl}#g' ./otel.yml && sed -i 's/\\\${env:ELASTIC_API_KEY}/${apiKeyData?.apiKeyEncoded}/g' ./otel.yml`,
-      start: './otelcol --config otel.yml',
+      start: 'sudo ./otelcol --config otel.yml',
       type: 'copy',
     },
     {