Update Go to v1.21.0 (#333)

Author: sebrandon1

.github/workflows/pre-main.yml

@@ -76,10 +76,10 @@ jobs:
           docker-images: true
           swap-storage: true
 
-      - name: Set up Go 1.20
+      - name: Set up Go 1.21
         uses: actions/setup-go@v4
         with:
-          go-version: 1.20.7
+          go-version: 1.21.0
 
       - name: Disable default go problem matcher
         run: echo "::remove-matcher owner=go::"

test-partner/Dockerfile

@@ -26,7 +26,7 @@ RUN \
 
 # Install Go binary
 ENV \
-	GO_BIN_TAR=go1.20.7.linux-amd64.tar.gz \
+	GO_BIN_TAR=go1.21.0.linux-amd64.tar.gz \
 	GO_DL_URL=https://golang.org/dl \
 	GOPATH=/root/go \
 	TEMP_DIR=/tmp

testapp/go.mod

@@ -1,3 +1,3 @@
 module main
 
-go 1.20
+go 1.21