feat: syn 2.0, merge eip712 crate into ethers-contract-derive (#2279)

* chore: bump syn to 2.0, fix breaking changes

* chore: update ethers-contract-derive to use syn 2

* chore: move eip712 into ethers-contract-derive

* fix: temp disable prettyplease formatting

* chore: update prettyplease

* fix mergings

* fix

* ci: disable live-tests since it doesn't do anything

* update

* chore: re-add eip712 feature for backwards compatibility

* chore: bump dependencies

.github/workflows/ci.yml

@@ -31,19 +31,19 @@ jobs:
                     - name: all features
                       flags: --workspace --all-features
                 include:
-                    # not workspace because compiling examples fails for no reason in CI,
+                    # not workspace because compiling examples fails for no reason in CI
                     - os: windows-latest
                       flags:
                           name: no default features
-                          flags: -p ethers --no-default-features
+                          flags: --no-default-features
                     - os: windows-latest
                       flags:
                           name: default features
-                          flags: -p ethers
+                          flags: ""
                     - os: windows-latest
                       flags:
                           name: all features
-                          flags: -p ethers --all-features
+                          flags: --all-features
         steps:
             - uses: actions/checkout@v3
             - uses: dtolnay/rust-toolchain@stable
@@ -85,16 +85,17 @@ jobs:
             - name: live tests
               run: cargo test -p ethers-etherscan --test it
 
-    live-tests:
-        name: live tests
-        runs-on: ubuntu-latest
-        concurrency: live-tests-${{ github.head_ref || github.run_id }}
-        steps:
-            - uses: actions/checkout@v3
-            - uses: dtolnay/rust-toolchain@stable
-            - uses: Swatinem/rust-cache@v2
-            - name: live tests
-              run: cargo test -p ethers --all-features
+    # TODO: Create a new `ethers-tests` crate in the workspace for live tests.
+    # live-tests:
+    #     name: live tests
+    #     runs-on: ubuntu-latest
+    #     concurrency: live-tests-${{ github.head_ref || github.run_id }}
+    #     steps:
+    #         - uses: actions/checkout@v3
+    #         - uses: dtolnay/rust-toolchain@stable
+    #         - uses: Swatinem/rust-cache@v2
+    #         - name: live tests
+    #           run: cargo test -p ethers-tests --all-features
 
     # TODO: [#2191](https://github.com/gakonst/ethers-rs/issues/2191)
     # feature-checks: