fix: enable default datadog-fips features from dogstatsd

[duncanpharvey]

What does this PR do?

Enable default datadog-fips features from dogstatsd.

Motivation

Error when building datadog-serverless-compat without the reqwest/rustls-tls feature:

serverless-components/crates/datadog-fips/Cargo.toml

Line 16 in 619d378

default = [ "reqwest/rustls-tls" ]

serverless-components % sudo RUSTFLAGS="-C linker=x86_64-linux-musl-gcc" cargo build --release -p datadog-serverless-compat --target x86_64-unknown-linux-musl
   Compiling datadog-fips v0.1.0 (/Users/duncan.harvey/go/src/github.com/DataDog/serverless-components/crates/datadog-fips)
error[E0599]: no method named `use_rustls_tls` found for struct `ClientBuilder` in the current scope
  --> crates/datadog-fips/src/reqwest_adapter.rs:14:35
   |
14 |     Ok(reqwest::Client::builder().use_rustls_tls())
   |                                   ^^^^^^^^^^^^^^ method not found in `ClientBuilder`

For more information about this error, try `rustc --explain E0599`.
error: could not compile `datadog-fips` (lib) due to 1 previous error

Additional Notes

• Skip ubuntu-24.04-arm build for Datadog Serverless Compat since this architecture is not supported by Azure Functions or Google Cloud Run Functions at this time
• Set fail-fast to false for Github Actions to false to allow for all jobs to run independently of other failures.

Describe how to test/QA your changes

Added build step for datadog-serverless-compat to CI to catch build errors in the future.

[apiarian-datadog]

this may be incorrect. we may need to select which features to include, default or not default. i'd say if you need the default feature from datadog-fips it would be better to add it to the default feature list on line 35 below

[duncanpharvey]

What about setting the default features from datadog-serverless-compat?

serverless-components/crates/datadog-serverless-compat/Cargo.toml

Line 14 in 72d066e

dogstatsd = { path = "../dogstatsd", default-features = true }

[apiarian-datadog]

ah, that shouldn't mess with bottlecap, i think. seems fine from that perspective.

[apiarian-datadog]

looks fine from the bottlecaps and fips-ish perspective