Security update for go1.20

Open Source Vulnerabilities SUSE-SU-2023:2105-1

This update for go1.20 fixes the following issues: Update to 1.20.4 (bnc#1206346): - CVE-2023-24539: Fixed an improper sanitization of CSS values (boo#1211029). - CVE-2023-24540: Fixed an improper handling of JavaScript whitespace (boo#1211030). - CVE-2023-29400: Fixed an improper handling of empty HTML attributes (boo#1211031). - runtime: automatically bump RLIMIT_NOFILE on Unix. - crypto/subtle: xor fails when run with race+purego. - cmd/compile: encoding/binary.PutUint16 sometimes doesn't write. - cmd/compile: internal compiler error: cannot call SetType(go.shape.int) on v (type int). - cmd/compile: miscompilation in star-tex.org/x/cmd/star-tex. - net/http: FileServer no longer serves content for POST. - crypto/tls: TLSv1.3 connection fails with invalid PSK binder. - cmd/compile: incorrect inline function variable. - cmd/compile: Unified IR exports table is binary unstable in presence of generics. - go/internal/gcimporter: lookupGorootExport should use the go command from build.Default.GOROOT. Non-security fixes: - Reverted go1.x Suggests go1.x-race (boo#1210963). - Re-enabled binary stripping and debuginfo (boo#1210938).