[fint] Add pgo_profile_path bool to context spec

https://fxrev.dev/1034333 introduced a new GN arg called
`pgo_profile_path` to use in PGO-optimized builds.
This patch adds pgo_profile_path into the context spec.

Original-Bug: 335919004
Change-Id: I27b49887d8b40cdddb9ebc4bdb68c73fc3d520f8
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1039294
GitOrigin-RevId: d4030b37fb0e86741ebb6089ad11038f524f8aa6
Reviewed-on: https://fuchsia-review.googlesource.com/c/infra/recipes/+/1040156
Fuchsia-Auto-Submit: Copybara Service <copybara-worker-blackhole@google.com>
Commit-Queue: Copybara Service <copybara-worker-blackhole@google.com>
diff --git a/recipe_proto/go.fuchsia.dev/fuchsia/tools/integration/fint/proto/context.proto b/recipe_proto/go.fuchsia.dev/fuchsia/tools/integration/fint/proto/context.proto
index 7bf3b69..84999db 100644
--- a/recipe_proto/go.fuchsia.dev/fuchsia/tools/integration/fint/proto/context.proto
+++ b/recipe_proto/go.fuchsia.dev/fuchsia/tools/integration/fint/proto/context.proto
@@ -58,4 +58,7 @@
   // after an incremental builds with the same static spec but a different
   // version of the code, which perfcompare builders do.
   bool skip_ninja_noop_check = 13;
+
+  // Absolute path to PGO profile data file.
+  string pgo_profile_path = 14;
 }