Update Go version to 1.20 (#110)

Signed-off-by: Peter Motičák <peter.moticak@pantheon.tech>

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-go@v3
         with:
-          go-version: '1.18'
+          go-version: 1.20.x
       - run: go mod tidy -v
       - name: "Check for changes in go.mod"
         run: |
@@ -27,7 +27,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-go@v3
         with:
-          go-version: '1.18'
+          go-version: 1.20.x
       - run: go mod download
       - name: "Compile Go code"
         run: |

docker/dev.Dockerfile

@@ -26,7 +26,7 @@ RUN apt-get update && apt-get install -y \
 	&& rm -rf /var/lib/apt/lists/*
 
 # Install Go
-ENV GOLANG_VERSION 1.18.3
+ENV GOLANG_VERSION 1.20.7
 RUN set -eux; \
 	dpkgArch="$(dpkg --print-architecture)"; \
 		case "${dpkgArch##*-}" in \

docker/mockcnf/Dockerfile

@@ -40,7 +40,7 @@ RUN apt-get update && apt-get install -y \
     rm -rf /var/lib/apt/lists/*
 
 # Install Go
-ENV GOLANG_VERSION 1.18.3
+ENV GOLANG_VERSION 1.20.7
 RUN set -eux; \
 	dpkgArch="$(dpkg --print-architecture)"; \
 		case "${dpkgArch##*-}" in \

docker/proto-rootgen/Dockerfile

@@ -31,7 +31,7 @@ RUN apt-get update && apt-get install -y \
     rm -rf /var/lib/apt/lists/*
 
 # Install Go
-ENV GOLANG_VERSION 1.18.3
+ENV GOLANG_VERSION 1.20.7
 RUN set -eux; \
 	dpkgArch="$(dpkg --print-architecture)"; \
 		case "${dpkgArch##*-}" in \

go.mod

@@ -1,6 +1,6 @@
 module go.pantheon.tech/stonework
 
-go 1.18
+go 1.20
 
 require (
 	github.com/apparentlymart/go-cidr v1.1.0