ffi: move the dependency override from ffi/Cargo.toml to the root one

This seems to be the only way to make the log rotation fix work and avoid build warnings like:

```
warning: patch for the non root package will be ignored, specify patch at the workspace root:
package:   matrix-rust-sdk/bindings/matrix-sdk-ffi/Cargo.toml
workspace: = matrix-rust-sdk/Cargo.toml
    Finished `dev` profile [unoptimized] target(s) in 0.30s
```

Author: jmartinesp

Cargo.lock

@@ -122,6 +122,12 @@ opt-level = 3
 [patch.crates-io]
 async-compat = { git = "https://github.com/jplatte/async-compat", rev = "16dc8597ec09a6102d58d4e7b67714a35dd0ecb8" }
 const_panic = { git = "https://github.com/jplatte/const_panic", rev = "9024a4cb3eac45c1d2d980f17aaee287b17be498" }
+# Needed to fix rotation log issue on Android (https://github.com/tokio-rs/tracing/issues/2937)
+tracing = { git = "https://github.com/element-hq/tracing.git", rev = "ca9431f74d37c9d3b5e6a9f35b2c706711dab7dd"}
+tracing-core = { git = "https://github.com/element-hq/tracing.git", rev = "ca9431f74d37c9d3b5e6a9f35b2c706711dab7dd" }
+tracing-subscriber = { git = "https://github.com/element-hq/tracing.git", rev = "ca9431f74d37c9d3b5e6a9f35b2c706711dab7dd" }
+tracing-appender = { git = "https://github.com/element-hq/tracing.git", rev = "ca9431f74d37c9d3b5e6a9f35b2c706711dab7dd" }
+paranoid-android = { git = "https://github.com/element-hq/paranoid-android.git", rev = "69388ac5b4afeed7be4401c70ce17f6d9a2cf19b" }
 
 [workspace.lints.rust]
 unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin_include)'] }

Cargo.toml

@@ -82,10 +82,3 @@ features = [
 
 [lints]
 workspace = true
-
-[patch.crates-io]
-tracing = { git = "https://github.com/element-hq/tracing.git", rev = "ca9431f74d37c9d3b5e6a9f35b2c706711dab7dd", default-features = false, features = ["std"] }
-tracing-core = { git = "https://github.com/element-hq/tracing.git", rev = "ca9431f74d37c9d3b5e6a9f35b2c706711dab7dd" }
-tracing-subscriber = { git = "https://github.com/element-hq/tracing.git", rev = "ca9431f74d37c9d3b5e6a9f35b2c706711dab7dd" }
-tracing-appender = { git = "https://github.com/element-hq/tracing.git", rev = "ca9431f74d37c9d3b5e6a9f35b2c706711dab7dd" }
-paranoid-android = { git = "https://github.com/element-hq/paranoid-android.git", rev = "69388ac5b4afeed7be4401c70ce17f6d9a2cf19b" }