deps: update dependency com.google.cloud:sdk-platform-java-config to v3.49.0

[zhumin8]

trying to exclude re2j that causes conflict for now. See #2134 (comment)

maven-enforcer error updating sdk-platform-java-config:

Error:  Failed to execute goal org.apache.maven.plugins:maven-enforcer-plugin:3.5.0:enforce (enforce) on project google-cloud-firestore: 
Error:  Rule 2: org.apache.maven.enforcer.rules.dependency.RequireUpperBoundDeps failed with message:
Error:  Failed while enforcing RequireUpperBoundDeps. The error(s) are [
Error:  Require upper bound dependencies error for com.google.re2j:re2j:1.7 [runtime] paths to dependency are:
Error:  +-com.google.cloud:google-cloud-firestore:3.31.6-SNAPSHOT
Error:    +-com.google.cloud.opentelemetry:exporter-metrics:0.33.0
Error:      +-com.google.cloud:google-cloud-monitoring:3.52.0
Error:        +-com.google.re2j:re2j:1.7 [runtime]
Error:  and
Error:  +-com.google.cloud:google-cloud-firestore:3.31.6-SNAPSHOT
Error:    +-com.google.api:gax-grpc:2.67.0
Error:      +-io.grpc:grpc-googleapis:1.71.0 [runtime] (managed) <-- io.grpc:grpc-googleapis:1.71.0 [runtime]
Error:        +-io.grpc:grpc-xds:1.71.0 [runtime] (managed) <-- io.grpc:grpc-xds:1.71.0 [runtime]
Error:          +-com.google.re2j:re2j:1.8 [runtime]

[zhumin8]

Actually, this exporter-metrics is part of java-shared-dependencies/third-party-dependencies. We might want to consider test and capture conflicts within sdk-platform-java.

https://github.com/googleapis/sdk-platform-java/blame/5b2ab829888631caa382621570910187de45ce1c/java-shared-dependencies/third-party-dependencies/pom.xml#L41

At the moment, the latest version of exporter-metrics still brings in an older google-cloud-monitoring version with this issue

  +-com.google.cloud.opentelemetry:exporter-metrics:0.35.0
     +-com.google.cloud:google-cloud-monitoring:3.52.0
       +-com.google.re2j:re2j:1.7 [runtime]