Update to protovalidate v1.0.0 (#347)

Update to [upstream
v1.0.0](https://github.com/bufbuild/protovalidate/releases/tag/v1.0.0).

Author: timostamm

gradle.properties

@@ -1,5 +1,5 @@
 # Version of buf.build/bufbuild/protovalidate to use.
-protovalidate.version = v0.14.2
+protovalidate.version = v1.0.0
 
 # Arguments to the protovalidate-conformance CLI
 protovalidate.conformance.args = --strict_message --strict_error --expected_failures=expected-failures.yaml

src/main/resources/buf/validate/validate.proto

@@ -243,7 +243,8 @@ message FieldRules {
   // the fields are set and valid.
   //
   // Fields that don't track presence are always validated by Protovalidate,
-  // whether they are set or not. It is not necessary to add `required`:
+  // whether they are set or not. It is not necessary to add `required`. It
+  // can be added to indicate that the field cannot be the zero value.
   //
   // ```proto
   // syntax="proto3";
@@ -254,9 +255,14 @@ message FieldRules {
   //     (buf.validate.field).string.email = true
   //   ];
   //   // `repeated.min_items` always applies, even to an empty list.
-  //   repeated string labels = 4 [
+  //   repeated string labels = 2 [
   //     (buf.validate.field).repeated.min_items = 1
   //   ];
+  //   // `required`, for fields that don't track presence, indicates
+  //   // the value of the field can't be the zero value.
+  //   int32 zero_value_not_allowed = 3 [
+  //     (buf.validate.field).required = true
+  //   ];
   // }
   // ```
   //
@@ -419,7 +425,8 @@ enum Ignore {
   //   // The field's rules will always be ignored, including any validations
   //   // on value's fields.
   //   MyOtherMessage value = 1 [
-  //     (buf.validate.field).ignore = IGNORE_ALWAYS];
+  //     (buf.validate.field).ignore = IGNORE_ALWAYS
+  //   ];
   // }
   // ```
   IGNORE_ALWAYS = 3;