ci: mark bedrock span sampling tests as flaky (#13437)

> botocore.exceptions.ClientError: An error occurred
(UnrecognizedClientException) when calling the InvokeModel operation:
The security token included in the request is invalid.

## Checklist
- [x] PR author has checked that all the criteria below are met
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- The PR description articulates the motivation for the change
- The change includes tests OR the PR description describes a testing
strategy
- The PR description notes risks associated with the change, if any
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[applicable](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting))

## Reviewer Checklist
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- Title is accurate
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[API](https://ddtrace.readthedocs.io/en/stable/versioning.html#interfaces)
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Author: brettlangdon

tests/contrib/botocore/test_bedrock.py

@@ -17,6 +17,7 @@
 from tests.subprocesstest import run_in_subprocess
 from tests.utils import DummyTracer
 from tests.utils import DummyWriter
+from tests.utils import flaky
 from tests.utils import override_global_config
 
 
@@ -140,18 +141,22 @@ def _test_span_sampling(self, rate):
                     sampled += 1
         assert (rate * num_completions - 30) < sampled < (rate * num_completions + 30)
 
+    @flaky(until=1752686557)
     @run_in_subprocess(env_overrides=dict(DD_BEDROCK_SPAN_PROMPT_COMPLETION_SAMPLE_RATE="0.0"))
     def test_span_sampling_0(self):
         self._test_span_sampling(rate=float(os.getenv("DD_BEDROCK_SPAN_PROMPT_COMPLETION_SAMPLE_RATE")))
 
+    @flaky(until=1752686557)
     @run_in_subprocess(env_overrides=dict(DD_BEDROCK_SPAN_PROMPT_COMPLETION_SAMPLE_RATE="0.25"))
     def test_span_sampling_25(self):
         self._test_span_sampling(rate=float(os.getenv("DD_BEDROCK_SPAN_PROMPT_COMPLETION_SAMPLE_RATE")))
 
+    @flaky(until=1752686557)
     @run_in_subprocess(env_overrides=dict(DD_BEDROCK_SPAN_PROMPT_COMPLETION_SAMPLE_RATE="0.75"))
     def test_span_sampling_75(self):
         self._test_span_sampling(rate=float(os.getenv("DD_BEDROCK_SPAN_PROMPT_COMPLETION_SAMPLE_RATE")))
 
+    @flaky(until=1752686557)
     @run_in_subprocess(env_overrides=dict(DD_BEDROCK_SPAN_PROMPT_COMPLETION_SAMPLE_RATE="1.0"))
     def test_span_sampling_100(self):
         self._test_span_sampling(rate=float(os.getenv("DD_BEDROCK_SPAN_PROMPT_COMPLETION_SAMPLE_RATE")))