Make E2E tests targetable / excludable in pipeline runs

[hallipr]

Until we have test proxy and playback support, we should be able to test everything excluding E2E tests in the PR pipeline runs.

Maybe these cargo test options?
--doc Test only this package's library unit tests
--lib Test only this package's library unit tests
--examples Test all examples

Full cargo test --help output:

Execute all unit and integration tests and build examples of a local package

Usage: cargo.exe test [OPTIONS] [TESTNAME] [-- [ARGS]...]

Arguments:
  [TESTNAME]  If specified, only run tests containing this string in their names
  [ARGS]...   Arguments for the test binary

Options:
      --doc                     Test only this library's documentation
      --no-run                  Compile, but don't run tests
      --no-fail-fast            Run all tests regardless of failure
      --ignore-rust-version     Ignore `rust-version` specification in packages
      --future-incompat-report  Outputs a future incompatibility report at the end of the build
      --message-format <FMT>    Error format
  -q, --quiet                   Display one character per test instead of one line
  -v, --verbose...              Use verbose output (-vv very verbose/build.rs output)
      --color <WHEN>            Coloring: auto, always, never
      --config <KEY=VALUE>      Override a configuration value
  -Z <FLAG>                     Unstable (nightly-only) flags to Cargo, see 'cargo -Z help' for details
  -h, --help                    Print help

Package Selection:
  -p, --package [<SPEC>]  Package to run tests for
      --workspace         Test all packages in the workspace
      --exclude <SPEC>    Exclude packages from the test
      --all               Alias for --workspace (deprecated)

Target Selection:
      --lib               Test only this package's library unit tests
      --bins              Test all binaries
      --bin [<NAME>]      Test only the specified binary
      --examples          Test all examples
      --example [<NAME>]  Test only the specified example
      --tests             Test all test targets
      --test [<NAME>]     Test only the specified test target
      --benches           Test all bench targets
      --bench [<NAME>]    Test only the specified bench target
      --all-targets       Test all targets (does not include doctests)

Feature Selection:
  -F, --features <FEATURES>  Space or comma separated list of features to activate
      --all-features         Activate all available features
      --no-default-features  Do not activate the `default` feature

Compilation Options:
  -j, --jobs <N>                Number of parallel jobs, defaults to # of CPUs.
  -r, --release                 Build artifacts in release mode, with optimizations
      --profile <PROFILE-NAME>  Build artifacts with the specified profile
      --target [<TRIPLE>]       Build for the target triple
      --target-dir <DIRECTORY>  Directory for all generated artifacts
      --unit-graph              Output build graph in JSON (unstable)
      --timings[=<FMTS>]        Timing output formats (unstable) (comma separated): html, json

Manifest Options:
      --manifest-path <PATH>  Path to Cargo.toml
      --frozen                Require Cargo.lock and cache are up to date
      --locked                Require Cargo.lock is up to date
      --offline               Run without accessing the network

Run `cargo help test` for more detailed information.
Run `cargo test -- --help` for test binary options.