This commit enables users to pass environment variable as composition
of env variable such as:

```yaml
  - id: yolov5
    operator:
      outputs:
        - bbox
        - ready
      inputs:
        image: oasis_agent/image
        check: oasis_agent/yolov5_check
      python: ../../operators/yolov5_op.py
    env:
      YOLOV5_PATH: $HOME/Documents/dependencies/yolov5
      YOLOV5_WEIGHT_PATH: $DORA_DEP_HOME/dependencies/yolov5/yolov5n.pt
```

Note that this is only for the env field. Expanding env variable for
source path might conflict with using url as source path.

Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.23.1 to 1.24.2.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](https://github.com/tokio-rs/tokio/commits)

---
updated-dependencies:
- dependency-name: tokio
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Bumps [bumpalo](https://github.com/fitzgen/bumpalo) from 3.9.1 to 3.12.0.
- [Release notes](https://github.com/fitzgen/bumpalo/releases)
- [Changelog](https://github.com/fitzgen/bumpalo/blob/main/CHANGELOG.md)
- [Commits](https://github.com/fitzgen/bumpalo/compare/3.9.1...3.12.0)

---
updated-dependencies:
- dependency-name: bumpalo
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

To allow for individual testing and benchmarking. This will also enable reuse of the library in other projects.

Bumps [webbrowser](https://github.com/amodm/webbrowser-rs) from 0.8.0 to 0.8.3.
- [Release notes](https://github.com/amodm/webbrowser-rs/releases)
- [Changelog](https://github.com/amodm/webbrowser-rs/blob/main/CHANGELOG.md)
- [Commits](https://github.com/amodm/webbrowser-rs/compare/v0.8.0...v0.8.3)

---
updated-dependencies:
- dependency-name: webbrowser
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.21.2 to 1.23.1.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](https://github.com/tokio-rs/tokio/compare/tokio-1.21.2...tokio-1.23.1)

---
updated-dependencies:
- dependency-name: tokio
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

The goal is to avoid the latency of the TCP socket.

Bumps [capnp](https://github.com/capnproto/capnproto-rust) from 0.14.9 to 0.14.11.
- [Release notes](https://github.com/capnproto/capnproto-rust/releases)
- [Commits](https://github.com/capnproto/capnproto-rust/compare/capnp-v0.14.9...capnp-v0.14.11)

---
updated-dependencies:
- dependency-name: capnp
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Avoids synchronization issues, e.g. if one node sends outputs before the receiver was launched and registered.