Update Go version

* Update Go to 1.20
* Update minimum Go to 1.19
* Update Go modules.

Signed-off-by: SuperQ <superq@gmail.com>

.circleci/config.yml

@@ -4,7 +4,7 @@ version: 2.1
 jobs:
   lint:
     docker:
-    - image: cimg/go:1.19
+    - image: cimg/go:1.20
     steps:
     - checkout
     - run: make check_license
@@ -55,15 +55,15 @@ workflows:
         matrix:
           parameters:
             go_version:
-            - "1.18"
             - "1.19"
+            - "1.20"
     - test:
         name: test-windows
         os: windows
         run_test: false
         matrix:
           parameters:
             go_version:
-            - "1.18"
             - "1.19"
+            - "1.20"
     - codespell

go.mod

@@ -1,9 +1,9 @@
 module github.com/prometheus/procfs
 
-go 1.18
+go 1.19
 
 require (
 	github.com/google/go-cmp v0.5.9
-	golang.org/x/sync v0.1.0
-	golang.org/x/sys v0.7.0
+	golang.org/x/sync v0.2.0
+	golang.org/x/sys v0.8.0
 )

go.sum

@@ -1,6 +1,6 @@
 github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
 github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
-golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sys v0.7.0 h1:3jlCCIQZPdOYu1h8BkNvLz8Kgwtae2cagcG/VamtZRU=
-golang.org/x/sys v0.7.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sync v0.2.0 h1:PUR+T4wwASmuSTYdKjYHI5TD22Wy5ogLU5qZCOLxBrI=
+golang.org/x/sync v0.2.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.8.0 h1:EBmGv8NaZBZTWvrbjNoL6HVt+IVy3QDQpJs7VRIw3tU=
+golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=