chore: replace yml to properties

- 배포 편리를 위해 교체

.gitignore

@@ -41,4 +41,6 @@ src/main/resources/application-oauth.properties
 src/main/resources/application-cloud.properties
 src/main/resources/application-springboot.yml
 /.env
-.env
+.env
+
+*.properties

src/main/java/efub/team4/backend_eweather/global/config/properties/CorsProperties.java

@@ -3,6 +3,7 @@
 import lombok.Getter;
 import lombok.Setter;
 import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.context.annotation.Bean;
 
 @Getter
 @Setter

src/main/java/efub/team4/backend_eweather/global/config/security/JwtConfig.java

@@ -5,10 +5,12 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Primary;
+import org.springframework.context.annotation.PropertySource;
 
 @Configuration
+@PropertySource(value = "classpath:/application.properties")
 public class JwtConfig {
-    @Value("${jwt.secret}")
+    @Value("${spring.jwt.secret}")
     private String secret;
 
     @Bean