Update solaris and Windows cross compile CI

The `pc-solaris` target was made the default in
<rust-lang/rust#82216> and the `sun-solaris`
target was removed in <rust-lang/rust#118091>.
Switch from `x86_64-sun-solaris` to `x86_64-pc-solaris` to reflect this.

Additionally, disable tests for the Windows cross compile target since
there is an error launching Wine. This may be
<cross-rs/cross#1372>.

.github/workflows/main.yml

@@ -47,15 +47,15 @@ jobs:
             test: true
           - target: aarch64-unknown-linux-musl
             test: true
-          - target: x86_64-pc-windows-gnu
-            test: true
           # Build only
+          - target: x86_64-pc-solaris
+            test: false
+          - target: x86_64-pc-windows-gnu
+            test: false
           - target: x86_64-unknown-freebsd
             test: false
           - target: x86_64-unknown-netbsd
             test: false
-          - target: x86_64-sun-solaris
-            test: false
           - target: x86_64-unknown-illumos
             test: false
     steps: