Increase otel attribute limits and make them configurable

[ericallam]

This will address #1964:

• Span and log attribute default value limits raised to 131072 bytes (from 1024), but truncated to 8192 in the trigger.dev logs
• For self-hosters, environment variables have been introduced to allow customization:

TRIGGER_OTEL_SPAN_ATTRIBUTE_COUNT_LIMIT: z.string().default("256"),
TRIGGER_OTEL_LOG_ATTRIBUTE_COUNT_LIMIT: z.string().default("256"),
TRIGGER_OTEL_SPAN_ATTRIBUTE_VALUE_LENGTH_LIMIT: z.string().default("131072"),
TRIGGER_OTEL_LOG_ATTRIBUTE_VALUE_LENGTH_LIMIT: z.string().default("131072"),
TRIGGER_OTEL_SPAN_EVENT_COUNT_LIMIT: z.string().default("10"),
TRIGGER_OTEL_LINK_COUNT_LIMIT: z.string().default("2"),
TRIGGER_OTEL_ATTRIBUTE_PER_LINK_COUNT_LIMIT: z.string().default("10"),
TRIGGER_OTEL_ATTRIBUTE_PER_EVENT_COUNT_LIMIT: z.string().default("10"),

On the cloud, limits can be configured per-environment by the trigger.dev team via the new builtInEnvironmentVariableOverrides column on RuntimeEnvironment.

---

This is part 2 of 2 in a stack made with GitButler:

•  2  Increase otel attribute limits and make them configurable #2189 👈
•  1  v4: Experimental process keep alive #2183

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