[SVLS-9373] fix(config): trim trailing slashes from DD URL env vars (#1298)

## Overview

`DD_URL`, `DD_DD_URL`, and `DD_APM_DD_URL` were not trimming trailing
slashes before being used to build intake URLs. This caused failures
such as failing `dogstatsd`'s `DdUrl`/`DdDdUrl` prefix validation,
panicking with `can't parse DD_DD_URL: UrlPrefixError(...)` in
`start_metrics_flushers`.

The fix lives upstream in `datadog-agent-config`:
DataDog/serverless-components#142.

This PR bumps bottlecap's `serverless-components` pin to the merged fix
commit, and bumps bottlecap's own direct `libdatadog` pins to match.

Also bumps the dd-trace-dotnet layer version for integration tests.

## Motivation

[SVLS-9373](https://datadoghq.atlassian.net/browse/SVLS-9373)

## Testing
- Added tests in serverless-components
- Manually tested on a Lambda function that the extension no longer
panics after these changes

[SVLS-9373]:
https://datadoghq.atlassian.net/browse/SVLS-9373?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

Author: shreyamalpani

bottlecap/Cargo.lock

@@ -74,17 +74,17 @@ indexmap = {version = "2.11.0", default-features = false}
 # be found in the clippy.toml file adjacent to this Cargo.toml.
 datadog-protos = { version = "0.1.0", default-features = false, git = "https://github.com/DataDog/saluki/", rev = "f863626dbfe3c59bb390985fa6530b0621c2a0a2"}
 ddsketch-agent = { version = "0.1.0", default-features = false, git = "https://github.com/DataDog/saluki/", rev = "f863626dbfe3c59bb390985fa6530b0621c2a0a2"}
-libdd-capabilities = { git = "https://github.com/DataDog/libdatadog", rev = "48da0d82cb32b43d4cdece35b794c9bcbc275a03" }
-libdd-common = { git = "https://github.com/DataDog/libdatadog", rev = "48da0d82cb32b43d4cdece35b794c9bcbc275a03", default-features = false }
-libdd-trace-protobuf = { git = "https://github.com/DataDog/libdatadog", rev = "48da0d82cb32b43d4cdece35b794c9bcbc275a03" }
-libdd-trace-utils = { git = "https://github.com/DataDog/libdatadog", rev = "48da0d82cb32b43d4cdece35b794c9bcbc275a03", default-features = false, features = ["mini_agent"] }
-libdd-trace-normalization = { git = "https://github.com/DataDog/libdatadog", rev = "48da0d82cb32b43d4cdece35b794c9bcbc275a03" }
-libdd-trace-obfuscation = { git = "https://github.com/DataDog/libdatadog", rev = "48da0d82cb32b43d4cdece35b794c9bcbc275a03", default-features = false }
-libdd-trace-stats = { git = "https://github.com/DataDog/libdatadog", rev = "48da0d82cb32b43d4cdece35b794c9bcbc275a03", default-features = false }
+libdd-capabilities = { git = "https://github.com/DataDog/libdatadog", rev = "a820699426f28cbabb3a74d87c7309d030b52e7c" }
+libdd-common = { git = "https://github.com/DataDog/libdatadog", rev = "a820699426f28cbabb3a74d87c7309d030b52e7c", default-features = false }
+libdd-trace-protobuf = { git = "https://github.com/DataDog/libdatadog", rev = "a820699426f28cbabb3a74d87c7309d030b52e7c" }
+libdd-trace-utils = { git = "https://github.com/DataDog/libdatadog", rev = "a820699426f28cbabb3a74d87c7309d030b52e7c", default-features = false, features = ["mini_agent"] }
+libdd-trace-normalization = { git = "https://github.com/DataDog/libdatadog", rev = "a820699426f28cbabb3a74d87c7309d030b52e7c" }
+libdd-trace-obfuscation = { git = "https://github.com/DataDog/libdatadog", rev = "a820699426f28cbabb3a74d87c7309d030b52e7c", default-features = false }
+libdd-trace-stats = { git = "https://github.com/DataDog/libdatadog", rev = "a820699426f28cbabb3a74d87c7309d030b52e7c", default-features = false }
 datadog-opentelemetry = { git = "https://github.com/DataDog/dd-trace-rs", rev = "f51cefc4ad24bec81b38fb2f36b1ed93f21ae913", default-features = false }
-dogstatsd = { git = "https://github.com/DataDog/serverless-components", rev = "8ce37eb029410b7cf30847376772e3af6baa5f5c", default-features = false }
-datadog-fips = { git = "https://github.com/DataDog/serverless-components", rev = "8ce37eb029410b7cf30847376772e3af6baa5f5c", default-features = false }
-datadog-agent-config = { git = "https://github.com/DataDog/serverless-components", rev = "8ce37eb029410b7cf30847376772e3af6baa5f5c", default-features = false }
+dogstatsd = { git = "https://github.com/DataDog/serverless-components", rev = "ddb4378017a50761a89e3b9e9de3411b0d79211d", default-features = false }
+datadog-fips = { git = "https://github.com/DataDog/serverless-components", rev = "ddb4378017a50761a89e3b9e9de3411b0d79211d", default-features = false }
+datadog-agent-config = { git = "https://github.com/DataDog/serverless-components", rev = "ddb4378017a50761a89e3b9e9de3411b0d79211d", default-features = false }
 libddwaf = { version = "1.28.1", git = "https://github.com/DataDog/libddwaf-rust", rev = "d1534a158d976bd4f747bf9fcc58e0712d2d17fc", default-features = false, features = ["serde"] }
 
 [dev-dependencies]

bottlecap/Cargo.toml

@@ -20,7 +20,7 @@ export const defaultGoRuntime = lambda.Runtime.PROVIDED_AL2023;
 export const defaultNodeLayerArn = process.env.NODE_TRACER_LAYER_ARN || 'arn:aws:lambda:us-east-1:464622532012:layer:Datadog-Node24-x:132';
 export const defaultPythonLayerArn = process.env.PYTHON_TRACER_LAYER_ARN || 'arn:aws:lambda:us-east-1:464622532012:layer:Datadog-Python313-ARM:117';
 export const defaultJavaLayerArn = process.env.JAVA_TRACER_LAYER_ARN || 'arn:aws:lambda:us-east-1:464622532012:layer:dd-trace-java:25';
-export const defaultDotnetLayerArn = process.env.DOTNET_TRACER_LAYER_ARN || 'arn:aws:lambda:us-east-1:464622532012:layer:dd-trace-dotnet-ARM:23';
+export const defaultDotnetLayerArn = process.env.DOTNET_TRACER_LAYER_ARN || 'arn:aws:lambda:us-east-1:464622532012:layer:dd-trace-dotnet-ARM:25';
 export const defaultRubyLayerArn = process.env.RUBY_TRACER_LAYER_ARN || 'arn:aws:lambda:us-east-1:464622532012:layer:Datadog-Ruby3-4-ARM:28';
 
 export const defaultDatadogEnvVariables = {