Go 1.18 drop (#950)

.github/workflows/ci.yml

@@ -31,13 +31,9 @@ jobs:
         with:
           submodules: recursive
           fetch-depth: 0 # fetch git tags for "git describe"
-      - uses: actions/setup-go@v3
+      - uses: actions/setup-go@v4
         with:
-          go-version: 1.18.x
-      - uses: actions/cache@v3
-        with:
-          path: ~/go/pkg/mod
-          key: ${{ matrix.os }}-go-${{ hashFiles('**/go.sum') }}
+          go-version: '1.19'
 
       - name: Install deps
         if: matrix.os == 'ubuntu-20.04'

go.mod

@@ -1,6 +1,6 @@
 module github.com/ledgerwatch/erigon-lib
 
-go 1.18
+go 1.19
 
 require (
 	github.com/ledgerwatch/interfaces v0.0.0-20230306115306-76f49663a127