Bump version to 2.21.1

Signed-off-by: Matthew Fala <[email protected]>

AWS_FOR_FLUENT_BIT_VERSION

@@ -1 +1 @@
-2.21.0
+2.21.1

CHANGELOG.md

@@ -1,5 +1,21 @@
 # Changelog
 
+### 2.21.1
+This release includes:
+* An Amazon Linux 2 Base
+* Fluent Bit [1.8.9](https://fluentbit.io/announcements/v1.8.9/)
+* Amazon CloudWatch Logs for Fluent Bit 1.6.3
+* Amazon Kinesis Streams for Fluent Bit 1.8.0
+* Amazon Kinesis Firehose for Fluent Bit 1.6.1
+
+Compared to `2.21.0` this release adds:
+* Bug - Avoid double free for multiline msgpack buffer [fluentbit:4243](https://github.com/fluent/fluent-bit/pull/4243)
+* Bug - On Multiline handling, use file inode as stream_id [fluentbit:3886](https://github.com/fluent/fluent-bit/issues/3886)
+
+Same as `2.21.0`, this release includes the following fixes for AWS customers that we are working on getting accepted upstream:
+* Bug - Fix return value from `tls_net_read` [fluentbit:4098](https://github.com/fluent/fluent-bit/issues/4098)
+* Bug - Downgrade `mbedtls` to 2.24.0 to fix the performance regression issue in `mbedtls` 2.26.0 [fluentbit:4110](https://github.com/fluent/fluent-bit/issues/4110)
+
 ### 2.21.0
 This release includes:
 * An Amazon Linux 2 Base

Dockerfile

@@ -1,7 +1,7 @@
 FROM public.ecr.aws/amazonlinux/amazonlinux:latest as builder
 
 # Fluent Bit version; update these for each release
-ENV FLB_VERSION 1.8.8
+ENV FLB_VERSION 1.8.9
 # branch to pull parsers from in github.com/fluent/fluent-bit-docker-image
 ENV FLB_DOCKER_BRANCH 1.8
 
@@ -41,9 +41,9 @@ ENV PATH ${PATH}:/home/.gimme/versions/go1.17.linux.arm64/bin:/home/.gimme/versi
 RUN go version
 
 WORKDIR /tmp/fluent-bit-$FLB_VERSION/
-RUN git clone https://github.com/PettitWesley/fluent-bit.git /tmp/fluent-bit-$FLB_VERSION/
+RUN git clone https://github.com/matthewfala/fluent-bit.git /tmp/fluent-bit-$FLB_VERSION/
 WORKDIR /tmp/fluent-bit-$FLB_VERSION/build/
-RUN git fetch origin && git checkout 1_8_8_patch && git status
+RUN git fetch origin && git checkout 1_8_9_patch && git status
 RUN cmake -DFLB_RELEASE=On \
           -DFLB_TRACE=Off \
           -DFLB_JEMALLOC=On \