pyiceberg-core: create smaller artifacts (#1841)

## Which issue does this PR close?

- Closes #1839

## What changes are included in this PR?

Add release profile configs to create smaller python artifacts for
pyiceberg-core

Inspired by
[opendal](https://github.com/apache/opendal/blob/e03f40a3f33856506c5f04c149f52bcc48253872/bindings/python/Cargo.toml#L219-L224)

### Size Reduction
[This
branch](https://github.com/apache/iceberg-rust/actions/runs/19280546898/attempts/1)
vs [main
branch](https://github.com/apache/iceberg-rust/actions/runs/19274277069)

| Name | Old Size | New Size | % Decrease |

|-----------------------------------------------|----------|----------|------------|
| wheels-macos-latest-universal2-apple-darwin | 63.2 MB | 44.4 MB |
29.75% |
| wheels-ubuntu-latest-aarch64 | 101 MB | 66.1 MB | 34.55% |
| wheels-ubuntu-latest-armv7l | 104 MB | 70.5 MB | 32.21% |
| wheels-ubuntu-latest-x86_64 | 34.8 MB | 23.8 MB | 31.61% |
| wheels-windows-latest | 30.3 MB | 25.9 MB | 14.52% |
| wheels-sdist                                 | 574 KB   | 575 KB  

## Are these changes tested?

<!--
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are they covered by existing tests)?
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Yes manually built and verified
https://github.com/apache/iceberg-rust/actions/runs/19280546898

Author: kevinjqliu

bindings/python/Cargo.toml

@@ -37,3 +37,9 @@ pyo3 = { version = "0.25", features = ["extension-module", "abi3-py39"] }
 iceberg-datafusion = { path = "../../crates/integrations/datafusion" }
 datafusion-ffi = { version = "50" }
 tokio = { version = "1.46.1", default-features = false }
+
+[profile.release]
+codegen-units = 1
+debug = false
+lto = "fat"
+strip = true