Bump atree from v0.8.0-rc.6 to v0.8.0

Atree v0.8.0 is the biggest release since the first
release of atree deployed to mainnet (atree v0.1.1).

Atree v0.8.0 passed 1034 hours of smoke tests as
well as comparisons using re-executed mainnet blocks
and storage health checks before/after Sept. 4 spork.

This release introduces atree inlining & deduplication which
eliminates over 1 billion mtrie nodes on mainnet and also
reduces atree payload count by over 500 million to improve
resource utilization of execution nodes.

More details at:
https://github.com/onflow/atree/releases/tag/v0.8.0

go.mod

@@ -13,7 +13,7 @@ require (
 	github.com/kr/pretty v0.3.1
 	github.com/leanovate/gopter v0.2.9
 	github.com/logrusorgru/aurora/v4 v4.0.0
-	github.com/onflow/atree v0.8.0-rc.6
+	github.com/onflow/atree v0.8.0
 	github.com/rivo/uniseg v0.4.4
 	github.com/schollz/progressbar/v3 v3.13.1
 	github.com/stretchr/testify v1.9.0

go.sum

@@ -75,8 +75,8 @@ github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db h1:62I3jR2Em
 github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db/go.mod h1:l0dey0ia/Uv7NcFFVbCLtqEBQbrT4OCwCSKTEv6enCw=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
-github.com/onflow/atree v0.8.0-rc.6 h1:GWgaylK24b5ta2Hq+TvyOF7X5tZLiLzMMn7lEt59fsA=
-github.com/onflow/atree v0.8.0-rc.6/go.mod h1:yccR+LR7xc1Jdic0mrjocbHvUD7lnVvg8/Ct1AA5zBo=
+github.com/onflow/atree v0.8.0 h1:qg5c6J1gVDNObughpEeWm8oxqhPGdEyGrda121GM4u0=
+github.com/onflow/atree v0.8.0/go.mod h1:yccR+LR7xc1Jdic0mrjocbHvUD7lnVvg8/Ct1AA5zBo=
 github.com/onflow/crypto v0.25.0 h1:BeWbLsh3ZD13Ej+Uky6kg1PL1ZIVBDVX+2MVBNwqddg=
 github.com/onflow/crypto v0.25.0/go.mod h1:C8FbaX0x8y+FxWjbkHy0Q4EASCDR9bSPWZqlpCLYyVI=
 github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=