Upgrade to flutter-2.5.1 (#57)

Hidenori Matsubayashi · web-flow · commit 745f63ab59bf · 2021-09-21T09:58:43.000+09:00
Upgraded to the flutter 2.5.1. See also: - https://github.com/sony/flutter-embedded-linux/releases/tag/b3af521a05 - https://github.com/flutter/flutter/tree/2.5.1
diff --git a/bin/internal/engine.version b/bin/internal/engine.version
@@ -1 +1 @@
-f0826da7ef2d301eb8f4ead91aaf026aa2b52881
+b3af521a050e6ef076778bcaf16e27b2521df8f8
diff --git a/bin/internal/flutter.version b/bin/internal/flutter.version
@@ -1 +1 @@
-4cc385b4b84ac2f816d939a49ea1f328c4e0b48e
+ffb2ecea5223acdd139a5039be2f9c796962833d

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-f0826da7ef2d301eb8f4ead91aaf026aa2b52881`
	`1`	`+b3af521a050e6ef076778bcaf16e27b2521df8f8`
Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-4cc385b4b84ac2f816d939a49ea1f328c4e0b48e`
	`1`	`+ffb2ecea5223acdd139a5039be2f9c796962833d`