refactor: add otel deployment env constant (#124)

Author: aaron-steinfeld

span-normalizer/span-normalizer-constants/src/main/java/org/hypertrace/core/semantic/convention/constants/deployment/OTelDeploymentSemanticConventions.java

@@ -0,0 +1,16 @@
+package org.hypertrace.core.semantic.convention.constants.deployment;
+
+/** OTEL specific attributes for deployment */
+public enum OTelDeploymentSemanticConventions {
+  DEPLOYMENT_ENVIRONMENT("deployment.environment");
+
+  private final String value;
+
+  OTelDeploymentSemanticConventions(String value) {
+    this.value = value;
+  }
+
+  public String getValue() {
+    return value;
+  }
+}