fix permissions of gradlew and restclient dependencies for samples

Author: steven-blakowski

samples/client/echo_api/java/resttemplate/build.gradle

@@ -100,7 +100,7 @@ ext {
     jackson_version = "2.17.1"
     jackson_databind_version = "2.17.1"
     jackson_databind_nullable_version = "0.2.6"
-    spring_web_version = "6.1.20"
+    spring_web_version = "5.3.33"
     jakarta_annotation_version = "1.3.5"
     beanvalidation_version = "2.0.2"
     jodatime_version = "2.9.9"

samples/client/others/java/resttemplate-list-schema-validation/build.gradle

@@ -100,7 +100,7 @@ ext {
     jackson_version = "2.17.1"
     jackson_databind_version = "2.17.1"
     jackson_databind_nullable_version = "0.2.6"
-    spring_web_version = "6.1.20"
+    spring_web_version = "5.3.33"
     jakarta_annotation_version = "1.3.5"
     beanvalidation_version = "2.0.2"
     jodatime_version = "2.9.9"

samples/client/others/java/resttemplate-useAbstractionForFiles/build.gradle

@@ -100,7 +100,7 @@ ext {
     jackson_version = "2.17.1"
     jackson_databind_version = "2.17.1"
     jackson_databind_nullable_version = "0.2.6"
-    spring_web_version = "6.1.20"
+    spring_web_version = "5.3.33"
     jakarta_annotation_version = "1.3.5"
     beanvalidation_version = "2.0.2"
     jodatime_version = "2.9.9"