Update Go to v1.20.6 (#310)

Author: sebrandon1

.github/workflows/pre-main.yml

@@ -67,7 +67,7 @@ jobs:
       - name: Set up Go 1.20
         uses: actions/setup-go@v4
         with:
-          go-version: 1.20.5
+          go-version: 1.20.6
 
       - name: Disable default go problem matcher
         run: echo "::remove-matcher owner=go::"

test-partner/Dockerfile

@@ -21,7 +21,7 @@ RUN \
 
 # Install Go binary
 ENV \
-	GO_BIN_TAR=go1.20.5.linux-amd64.tar.gz \
+	GO_BIN_TAR=go1.20.6.linux-amd64.tar.gz \
 	GO_DL_URL=https://golang.org/dl \
 	GOPATH=/root/go \
 	TEMP_DIR=/tmp