Update MongoDB Driver and Configuration for Company Entities

- Updated the MongoDB driver from v1.17.4 to v2.3.0, ensuring compatibility with the latest features and improvements.
- Refactored company-related entity and repository files to utilize the new driver, replacing `primitive.ObjectID` with `bson.ObjectID` for ID handling.
- Adjusted the configuration in `.drone.yml` to include the `main` branch in the trigger settings, enhancing CI/CD pipeline flexibility.

pkg/mongo/connection.go

@@ -5,10 +5,10 @@ import (
 	"fmt"
 	"time"
 
-	"go.mongodb.org/mongo-driver/bson"
-	"go.mongodb.org/mongo-driver/mongo"
-	"go.mongodb.org/mongo-driver/mongo/options"
-	"go.mongodb.org/mongo-driver/mongo/readpref"
+	"go.mongodb.org/mongo-driver/v2/bson"
+	"go.mongodb.org/mongo-driver/v2/mongo"
+	"go.mongodb.org/mongo-driver/v2/mongo/options"
+	"go.mongodb.org/mongo-driver/v2/mongo/readpref"
 )
 
 // ConnectionConfig holds MongoDB connection configuration
@@ -62,7 +62,7 @@ func NewConnectionManager(config ConnectionConfig, logger Logger) (*ConnectionMa
 	ctx, cancel := context.WithTimeout(context.Background(), config.ConnectTimeout)
 	defer cancel()
 
-	client, err := mongo.Connect(ctx, clientOptions)
+	client, err := mongo.Connect(clientOptions)
 	if err != nil {
 		logger.Error("Failed to connect to MongoDB", map[string]interface{}{
 			"uri":   config.URI,
@@ -144,7 +144,7 @@ func (cm *ConnectionManager) DropIndexes(collectionName string, indexNames []str
 		ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
 		defer cancel()
 
-		_, err := collection.Indexes().DropOne(ctx, indexName)
+		err := collection.Indexes().DropOne(ctx, indexName)
 		if err != nil {
 			cm.logger.Error("Failed to drop index", map[string]interface{}{
 				"collection": collectionName,