[circleci] Update tested Go versions to 1.19 & 1.20

Author: Viq111

.circleci/config.yml

@@ -1,19 +1,19 @@
 version: 2
 
 jobs:
-  "golang-1.16":
+  "golang-1.19":
     docker:
-      - image: cimg/go:1.16
+      - image: cimg/go:1.19
     steps:
       - checkout
       - run: 'wget https://github.com/DataDog/zstd/files/2246767/mr.zip'
       - run: 'unzip mr.zip'
       - run: 'go build'
       - run: 'PAYLOAD=`pwd`/mr go test -v'
       - run: 'PAYLOAD=`pwd`/mr go test -bench .'
-  "golang-1.16-external-libzstd":
+  "golang-1.19-external-libzstd":
     docker:
-      - image: cimg/go:1.16
+      - image: cimg/go:1.19
     steps:
       - checkout
       - run: 'sudo apt update'
@@ -23,19 +23,19 @@ jobs:
       - run: 'go build'
       - run: 'PAYLOAD=`pwd`/mr go test -v'
       - run: 'PAYLOAD=`pwd`/mr go test -bench .'
-  "golang-1.17":
+  "golang-1.20":
     docker:
-      - image: cimg/go:1.17
+      - image: cimg/go:1.20
     steps:
       - checkout
       - run: 'wget https://github.com/DataDog/zstd/files/2246767/mr.zip'
       - run: 'unzip mr.zip'
       - run: 'go build'
       - run: 'PAYLOAD=`pwd`/mr go test -v'
       - run: 'PAYLOAD=`pwd`/mr go test -bench .'
-  "golang-1.17-external-libzstd":
+  "golang-1.20-external-libzstd":
     docker:
-      - image: cimg/go:1.17
+      - image: cimg/go:1.20
     steps:
       - checkout
       - run: 'sudo apt update'
@@ -100,10 +100,10 @@ workflows:
   version: 2
   build:
     jobs:
-      - "golang-1.16"
-      - "golang-1.16-external-libzstd"
-      - "golang-1.17"
-      - "golang-1.17-external-libzstd"
+      - "golang-1.19"
+      - "golang-1.19-external-libzstd"
+      - "golang-1.20"
+      - "golang-1.20-external-libzstd"
       - "golang-latest"
       - "golang-latest-external-libzstd"
       - "golang-efence"