Disable builds for x86_64-fuchsia

CI fails because there is no std lib:
error: toolchain 'nightly-x86_64-unknown-linux-gnu' does not contain component 'rust-std' for target 'x86_64-fuchsia'

Author: flba-eb

.github/workflows/main.yml

@@ -204,9 +204,9 @@ jobs:
         target:
         - wasm32-unknown-unknown
         - wasm32-wasi
-        - x86_64-fuchsia
         - x86_64-fortanix-unknown-sgx
         - x86_64-unknown-illumos
+        # - x86_64-fuchsia # error: toolchain 'nightly-x86_64-unknown-linux-gnu' does not contain component 'rust-std' for target 'x86_64-fuchsia'
     steps:
     - uses: actions/checkout@v3
       with: