Add JMX metrics gatherer version 1.48.0-alpha (open-telemetry#41533)

Add JMX metrics gatherer version `1.48.0-alpha`.

cc @open-telemetry/java-contrib-approvers

Co-authored-by: otelbot <197425009+otelbot@users.noreply.github.com>

Author: otelbot[bot]

receiver/jmxreceiver/supported_jars.go

@@ -41,6 +41,10 @@ var jmxScraperVersions = map[string]supportedJar{
 // If you change this variable name, please open an issue in opentelemetry-java-contrib
 // so that repository's release automation can be updated
 var jmxMetricsGathererVersions = map[string]supportedJar{
+	"dd1ab4cb7fd45c30cf4e8090f9289a42b2c7bc1e7377536eef2c40c51d8641ae": {
+		version: "1.48.0-alpha",
+		jar:     "JMX metrics gatherer",
+	},
 	"0344be738295602718934accd0557496b10464582681e69a251dc3b8d3f69b69": {
 		version: "1.47.0-alpha",
 		jar:     "JMX metrics gatherer",