Bump gRPC version to fix Http2Headers.isEmpty

[Koziad]

While trying to implement Topaz into Spring using the aserto-spring middleware (version 0.0.12). We used the example docker-compose project to get started quickly and followed the aserto-spring example documentation. However, @haftoe and I ran into the following error when performing the authz/is check: Is call failed [UNKNOWN].

We first set the logging level to trace for the Docker containers and after some initial troubleshooting, we encountered the problem described above. Afterwards, we tried to create our own Spring Beans with the Aserto Java client and created the following stacktrace:

java.lang.UnsupportedOperationException: null
	at io.grpc.netty.AbstractHttp2Headers.isEmpty(AbstractHttp2Headers.java:40) ~[grpc-netty-1.53.0.jar:1.53.0]
	at io.netty.handler.codec.http2.DefaultHttp2ConnectionDecoder$FrameReadListener.onHeadersRead(DefaultHttp2ConnectionDecoder.java:419) ~[netty-codec-http2-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.codec.http2.DefaultHttp2ConnectionDecoder$FrameReadListener.onHeadersRead(DefaultHttp2ConnectionDecoder.java:352) ~[netty-codec-http2-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.codec.http2.Http2InboundFrameLogger$1.onHeadersRead(Http2InboundFrameLogger.java:56) ~[netty-codec-http2-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.codec.http2.DefaultHttp2FrameReader$2.processFragment(DefaultHttp2FrameReader.java:476) ~[netty-codec-http2-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.codec.http2.DefaultHttp2FrameReader.readHeadersFrame(DefaultHttp2FrameReader.java:484) ~[netty-codec-http2-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.codec.http2.DefaultHttp2FrameReader.processPayloadState(DefaultHttp2FrameReader.java:253) ~[netty-codec-http2-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.codec.http2.DefaultHttp2FrameReader.readFrame(DefaultHttp2FrameReader.java:159) ~[netty-codec-http2-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.codec.http2.Http2InboundFrameLogger.readFrame(Http2InboundFrameLogger.java:41) ~[netty-codec-http2-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.codec.http2.DefaultHttp2ConnectionDecoder.decodeFrame(DefaultHttp2ConnectionDecoder.java:188) ~[netty-codec-http2-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.codec.http2.Http2ConnectionHandler$FrameDecoder.decode(Http2ConnectionHandler.java:393) ~[netty-codec-http2-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.codec.http2.Http2ConnectionHandler.decode(Http2ConnectionHandler.java:453) ~[netty-codec-http2-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:529) ~[netty-codec-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:468) ~[netty-codec-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:290) ~[netty-codec-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[netty-transport-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[netty-transport-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1475) ~[netty-handler-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1338) ~[netty-handler-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1387) ~[netty-handler-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:529) ~[netty-codec-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:468) ~[netty-codec-4.1.101.Final.jar:4.1.101.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:290) ~[netty-codec-4.1.101.Final.jar:4.1.101.Final]
....

This led us to a recent closed issue from grpc-java, which meant that the minor version needed to be bumped. Our temporary solution for our Spring Boot application was to manually exclude the dependencies in aserto-spring.

<dependency>
	<groupId>com.aserto</groupId>
	<artifactId>aserto-spring</artifactId>
	<version>0.0.12</version>
	<exclusions>
		<exclusion>
			<groupId>io.grpc</groupId>
			<artifactId>grpc-netty</artifactId>
		</exclusion>
		<exclusion>
			<groupId>io.grpc</groupId>
			<artifactId>grpc-api</artifactId>
		</exclusion>
	</exclusions>
</dependency>

<dependency>
	<groupId>io.grpc</groupId>
	<artifactId>grpc-netty</artifactId>
	<version>1.59.1</version>
</dependency>

<dependency>
	<groupId>io.grpc</groupId>
	<artifactId>grpc-api</artifactId>
	<version>1.59.1</version>
</dependency>