all: replace target=wasi with target=wasip1

This eliminates the 'wasi' build tag in favor of 'GOOS=wasip1', introduced in Go 1.21.

For backwards compatablity, -target=wasi is a synonym for -target=wasip1.

src/runtime/memhash_fnv.go

@@ -1,4 +1,4 @@
-//go:build (!wasi && !runtime_memhash_tsip && !runtime_memhash_leveldb) || (wasi && runtime_memhash_fnv)
+//go:build (!wasip1 && !runtime_memhash_tsip && !runtime_memhash_leveldb) || (wasip1 && runtime_memhash_fnv)
 
 // This is the default for all targets except WASI, unless a more specific build
 // tag is set.

src/runtime/memhash_leveldb.go

@@ -1,4 +1,4 @@
-//go:build runtime_memhash_leveldb || (wasi && !runtime_memhash_fnv && !runtime_memhash_tsip)
+//go:build runtime_memhash_leveldb || (wasip1 && !runtime_memhash_fnv && !runtime_memhash_tsip)
 
 // This is the default for WASI, but can also be used on other targets with the
 // right build tag.

src/runtime/os_linux.go

@@ -1,4 +1,4 @@
-//go:build linux && !baremetal && !nintendoswitch && !wasi && !wasm_unknown
+//go:build linux && !baremetal && !nintendoswitch && !wasip1 && !wasm_unknown
 
 package runtime
 

src/runtime/runtime_unix.go

@@ -1,4 +1,4 @@
-//go:build (darwin || (linux && !baremetal && !wasi && !wasm_unknown)) && !nintendoswitch
+//go:build (darwin || (linux && !baremetal && !wasip1 && !wasm_unknown)) && !nintendoswitch
 
 package runtime
 

src/runtime/runtime_wasip1.go

@@ -1,4 +1,4 @@
-//go:build tinygo.wasm && (wasi || wasip1)
+//go:build wasip1
 
 package runtime
 

src/runtime/runtime_wasm_js.go

@@ -1,4 +1,4 @@
-//go:build wasm && !wasi && !wasip1
+//go:build wasm && !wasip1
 
 package runtime