Updating protocol buffers version to v28.0 (#1134)

* 64edebc - Github Actions - 2024-09-01 02:10:26 
  Upgrade to  protocol buffer release v28.0

---------

Co-authored-by: Github Actions <[email protected]>
Co-authored-by: Ashwin Krishnan <[email protected]>

Author: 3 people

02_mqtt-cluster/README.md

@@ -34,7 +34,7 @@ Where in:
 
 1. **Step 1**: Download or install protoc. Refer
     * [Installing on Linux/MacOs](https://grpc.io/docs/protoc-installation/)
-    * [Install pre-compiled version](https://github.com/protocolbuffers/protobuf/releases). This project currently is using version  [Protocol Buffers v27.3](https://github.com/protocolbuffers/protobuf/releases/tag/v27.3)
+    * [Install pre-compiled version](https://github.com/protocolbuffers/protobuf/releases). This project currently is using version  [Protocol Buffers v28.0](https://github.com/protocolbuffers/protobuf/releases/tag/v28.0)
     and downloaded the pre-compiled versions for  linux-x86_64 and win64. For other platforms please replace with the appropriate runtime or compile the runtime directly
 1. **Step 2**: Copy the [SparkPlugB protocol buffer specification](https://github.com/eclipse/tahu/tree/master/sparkplug_b/sparkplug_b.proto) from [Eclipse Tahu project](https://github.com/eclipse/tahu/tree/master/sparkplug_b) to the folder [./sparkplug_b](./sparkplug_b/)
 1. **Step 3**: Compile the SparkplugB protocol buffer into python class by the following command
@@ -235,11 +235,11 @@ poetry run pytest  test/
 
 1. The protoc executable for [Linux](./protobuf/bin/protoc) is for x86_64  architecture and will need execute rights to be able to run and compile the [sparkplug_b.proto](./sparkplug_b/sparkplug_b.proto) specification.
    The protoc executable for [Windows](./protobuf/bin/protoc.exe) is for a 64 bit processor.
-   For other architectures please download the appropriate pre compiled version of [Protobuf release v27.3](https://github.com/protocolbuffers/protobuf/releases/tag/v27.3) e.g.
-    * [protoc-27.3-linux-aarch_64.zip](https://github.com/protocolbuffers/protobuf/releases/download/v27.3/protoc-27.3-linux-aarch_64.zip)
-    * [protoc-27.3-linux-ppcle_64.zip](https://github.com/protocolbuffers/protobuf/releases/download/v27.3/protoc-27.3-linux-ppcle_64.zip)
-    * [protoc-27.3-linux-x86_32.zip](https://github.com/protocolbuffers/protobuf/releases/download/v27.3/protoc-27.3-linux-x86_32.zip)
-    * [protoc-27.3-win32.zip](https://github.com/protocolbuffers/protobuf/releases/download/v27.3/protoc-27.3-win32.zip)
+   For other architectures please download the appropriate pre compiled version of [Protobuf release v28.0](https://github.com/protocolbuffers/protobuf/releases/tag/v28.0) e.g.
+    * [protoc-28.0-linux-aarch_64.zip](https://github.com/protocolbuffers/protobuf/releases/download/v28.0/protoc-28.0-linux-aarch_64.zip)
+    * [protoc-28.0-linux-ppcle_64.zip](https://github.com/protocolbuffers/protobuf/releases/download/v28.0/protoc-28.0-linux-ppcle_64.zip)
+    * [protoc-28.0-linux-x86_32.zip](https://github.com/protocolbuffers/protobuf/releases/download/v28.0/protoc-28.0-linux-x86_32.zip)
+    * [protoc-28.0-win32.zip](https://github.com/protocolbuffers/protobuf/releases/download/v28.0/protoc-28.0-win32.zip)
 
 1. Need to understand how to handle metric types DataSet, Template
 

02_mqtt-cluster/poetry.lock

@@ -24,7 +24,6 @@ message CppFeatures {
     retention = RETENTION_RUNTIME,
     targets = TARGET_TYPE_FIELD,
     targets = TARGET_TYPE_FILE,
-    // TODO Enable this in google3 once protoc rolls out.
     feature_support = {
       edition_introduced: EDITION_2023,
       edition_deprecated: EDITION_2023,
@@ -33,7 +32,7 @@ message CppFeatures {
                            "edition 2025.  Mark enum type on the enum "
                            "definitions themselves rather than on fields.",
     },
-    edition_defaults = { edition: EDITION_PROTO2, value: "true" },
+    edition_defaults = { edition: EDITION_LEGACY, value: "true" },
     edition_defaults = { edition: EDITION_PROTO3, value: "false" }
   ];
 
@@ -48,11 +47,10 @@ message CppFeatures {
     retention = RETENTION_RUNTIME,
     targets = TARGET_TYPE_FIELD,
     targets = TARGET_TYPE_FILE,
-    // TODO Enable this in google3 once protoc rolls out.
     feature_support = {
       edition_introduced: EDITION_2023,
     },
-    edition_defaults = { edition: EDITION_PROTO2, value: "STRING" },
+    edition_defaults = { edition: EDITION_LEGACY, value: "STRING" },
     edition_defaults = { edition: EDITION_2024, value: "VIEW" }
   ];
 }