Does not work with go 1.20+

[nikolaydubina]

Short summary

Does not work with go 1.20+

Steps to reproduce the behavior

git clone https://github.com/tommy-muehle/go-mnd
go install github.com/tommy-muehle/go-mnd/v2/cmd/mnd@latest
mnd ./...

go-mnd version or commit ref

v2 + latest

Go version (output of 'go version')

go version go1.20.4 darwin/arm64

Operating system / Environment

GO111MODULE=""
GOARCH="arm64"
GOBIN="//Users/nikolaydubina/go/bin"
GOCACHE="/Users/nikolaydubina/Library/Caches/go-build"
GOENV="/Users/nikolaydubina/Library/Application Support/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="arm64"
GOHOSTOS="darwin"
GOINSECURE=""
GOMODCACHE="/Users/nikolaydubina/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="darwin"
GOPATH="/Users/nikolaydubina/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_arm64"
GOVCS=""
GOVERSION="go1.20.4"
GCCGO="gccgo"
AR="ar"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD="/Users/nikolaydubina/Workspace/fpdecimal/go.mod"
GOWORK=""
CGO_CFLAGS="-O2 -g"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-O2 -g"
CGO_FFLAGS="-O2 -g"
CGO_LDFLAGS="-O2 -g"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -arch arm64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/dt/1y99_j6s0yj7y151_dr026gh0000gn/T/go-build134182500=/tmp/go-build -gno-record-gcc-switches -fno-common"

Expected behavior

no errors on its own repository

Actual behavior

error

mnd: internal error: package "regexp" without types was imported from "github.com/tommy-muehle/go-mnd/v2/config"