PR #1160 broke compatibility with golang 1.20

[anderbubble]

Steps to reproduce

make test or any build attempt.

Error message

$ go mod vendor; go mod tidy; make test
go test ./...
vendor/go.opentelemetry.io/otel/attribute/set.go:7:2: package cmp is not in GOROOT (/usr/lib/golang/src/cmp)
note: imported by a module that requires go 1.21
vendor/go.opentelemetry.io/otel/attribute/set.go:10:2: package slices is not in GOROOT (/usr/lib/golang/src/slices)
note: imported by a module that requires go 1.21
make: *** [Makefile:79: test] Error 1

Information on your system

NAME="Rocky Linux"
VERSION="9.3 (Blue Onyx)"
ID="rocky"
ID_LIKE="rhel centos fedora"
VERSION_ID="9.3"
PLATFORM_ID="platform:el9"
PRETTY_NAME="Rocky Linux 9.3 (Blue Onyx)"
ANSI_COLOR="0;32"
LOGO="fedora-logo-icon"
CPE_NAME="cpe:/o:rocky:rocky:9::baseos"
HOME_URL="https://rockylinux.org/"
BUG_REPORT_URL="https://bugs.rockylinux.org/"
SUPPORT_END="2032-05-31"
ROCKY_SUPPORT_PRODUCT="Rocky-Linux-9"
ROCKY_SUPPORT_PRODUCT_VERSION="9.3"
REDHAT_SUPPORT_PRODUCT="Rocky Linux"
REDHAT_SUPPORT_PRODUCT_VERSION="9.3"

testing from main while working on v4.5.x.

General information

• I have run wwctl version and reported the contents of /etc/os-release
• I have searched the issues of this repo and believe this is not a duplicate
• I have captured and reported relevant error messages and logs