[lucicfg] Update 1.30.11 => 1.31.1.

Notable changes:
* Updated `buildifier` dependency, adding more linting checks.
* Experiment to generate `location_filters` in CQ configs:
  https://chromium.googlesource.com/infra/luci/luci-go.git/+/6915bcc1

R=qyearsley@chromium.org

Change-Id: I2874251e40b857ce671200f69ea172e20227584c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/3704326Reviewed-by: Quinten Yearsley <qyearsley@chromium.org>
Commit-Queue: Vadim Shtayura <vadimsh@chromium.org>

cipd_manifest.txt

@@ -41,7 +41,7 @@ infra/tools/luci/vpython/${platform} git_revision:7989c7a87b25083bd8872f9216ba48
 infra/tools/luci/led/${platform} git_revision:498086360bfcd549c1b71bb0b320f3cf06bf9187
 
 # LUCI config generator
-infra/tools/luci/lucicfg/${platform} git_revision:ffa6f49897cca60d2fcfee95a658bd777226d743
+infra/tools/luci/lucicfg/${platform} git_revision:8d6bde785b197d153f0343a2bcef315ade19e077
 
 # Mac toolchain installer
 infra/tools/mac_toolchain/${os=mac}-${arch} git_revision:723fc1a6c8cdf2631a57851f5610e598db0c1de1

cipd_manifest.versions

@@ -298,56 +298,56 @@ infra/tools/luci/led/windows-amd64
 	1W_k2kT7wobobIzMBQgPmEitveAp8nyBGIqqwxNpw4wC
 
 infra/tools/luci/lucicfg/linux-386
-	git_revision:ffa6f49897cca60d2fcfee95a658bd777226d743
-	ZK0Gc6KmABMjpcl-nFASnb-AcE6O9QqgEjLjNBMtghEC
+	git_revision:8d6bde785b197d153f0343a2bcef315ade19e077
+	t2mWViMvEm5lBZOHcp8X0qkgwgV661ta8aYMC8dCRn4C
 
 infra/tools/luci/lucicfg/linux-amd64
-	git_revision:ffa6f49897cca60d2fcfee95a658bd777226d743
-	TfcNva2czO7gCVC4eVY--f5hQpylkrr0EKnkA-h6ag8C
+	git_revision:8d6bde785b197d153f0343a2bcef315ade19e077
+	fEx8_Nrs5-jLqtrsov_sihuClMXobO__ezKFtJrMQ9gC
 
 infra/tools/luci/lucicfg/linux-arm64
-	git_revision:ffa6f49897cca60d2fcfee95a658bd777226d743
-	mQr7tdpQoMCchilOtqvKKIl5kX9quJx-3-1BUXlyYJMC
+	git_revision:8d6bde785b197d153f0343a2bcef315ade19e077
+	9qyn1HgUi_sCGxaZlcTTaekbqpkqRwT9FWj08ggCpZkC
 
 infra/tools/luci/lucicfg/linux-armv6l
-	git_revision:ffa6f49897cca60d2fcfee95a658bd777226d743
-	yZNbLj9QJ32AdMU3ltSSkR__VeSz1NpqS3r0kBH_gjEC
+	git_revision:8d6bde785b197d153f0343a2bcef315ade19e077
+	UYFOf7AddhSX1BTvBHj8qSWcpa60mr40v6pBqyTjd4QC
 
 infra/tools/luci/lucicfg/linux-mips64
-	git_revision:ffa6f49897cca60d2fcfee95a658bd777226d743
-	LMygQqTXbHZIUg_2mhNAdsn6uxG2-LLH6wRmCWIZkFIC
+	git_revision:8d6bde785b197d153f0343a2bcef315ade19e077
+	X03zB0g8wJiC1piDXArAbNUDCYE0krEEoJW-5gI8IGsC
 
 infra/tools/luci/lucicfg/linux-mips64le
-	git_revision:ffa6f49897cca60d2fcfee95a658bd777226d743
-	m2KeTWOOV5JUO47zHhLIq56fWLOHArz-alTArERxWroC
+	git_revision:8d6bde785b197d153f0343a2bcef315ade19e077
+	QkSMfaGtQo-AZybBc0kHc51YLke6lF-7GSWPv_IFJaYC
 
 infra/tools/luci/lucicfg/linux-mipsle
-	git_revision:ffa6f49897cca60d2fcfee95a658bd777226d743
-	crz2XyVjRGagDEMb9KkYCNdVb_C5-AyYAIUuQ7MW2PMC
+	git_revision:8d6bde785b197d153f0343a2bcef315ade19e077
+	l7mfPfwjfpT67bX87dygEEexvsfjQJNSFyJOoYIjIx8C
 
 infra/tools/luci/lucicfg/linux-ppc64
-	git_revision:ffa6f49897cca60d2fcfee95a658bd777226d743
-	ueMIfC4R1DmcBDxd84zuQX_OYJtbHAjM5xNVr53T3qAC
+	git_revision:8d6bde785b197d153f0343a2bcef315ade19e077
+	v8pWD5yw_DHr_jwEHxfaqueDBlWeukLQy3q705HXm1gC
 
 infra/tools/luci/lucicfg/linux-ppc64le
-	git_revision:ffa6f49897cca60d2fcfee95a658bd777226d743
-	8VbqRPmAVWp5PBb4WpWT_1FsZWTr3MEoae-f2athh3QC
+	git_revision:8d6bde785b197d153f0343a2bcef315ade19e077
+	CL3_GR98cdY6yFBDJ_kXfJ_eC-4S1RWQQzTDEC3iCRoC
 
 infra/tools/luci/lucicfg/linux-s390x
-	git_revision:ffa6f49897cca60d2fcfee95a658bd777226d743
-	GvH6I-ehUKsAT9YehJq19q29_9zXLijMFxp8IhxetBIC
+	git_revision:8d6bde785b197d153f0343a2bcef315ade19e077
+	QxRNR2tQa6KiFv1CncdFnnpIIWGfB8_hSk79ngdS6B8C
 
 infra/tools/luci/lucicfg/mac-amd64
-	git_revision:ffa6f49897cca60d2fcfee95a658bd777226d743
-	q17lWAWwQYQvMimifhNp1nR380do9A8MtLhy_qt2X00C
+	git_revision:8d6bde785b197d153f0343a2bcef315ade19e077
+	nsGTVloMVcxdldTLWZdUufPGiAoxA-8BosvVswmhDx8C
 
 infra/tools/luci/lucicfg/mac-arm64
-	git_revision:ffa6f49897cca60d2fcfee95a658bd777226d743
-	k2DQYWWFveE7rs1BiNswppqai6S9GMN9UheVo7Dn6yEC
+	git_revision:8d6bde785b197d153f0343a2bcef315ade19e077
+	sYqiDB4wZw4YawZumQzAZNZ77fbHNeGkKFmy54cnDfUC
 
 infra/tools/luci/lucicfg/windows-amd64
-	git_revision:ffa6f49897cca60d2fcfee95a658bd777226d743
-	0t3Tu79euI8SvlFZP2Cs_JiJwO2GuXWkkX5MCui3N_gC
+	git_revision:8d6bde785b197d153f0343a2bcef315ade19e077
+	WNc0dEI06Nqnv6VThP3eUOzArMWS1JZ1wFypDa8gYV8C
 
 infra/tools/luci/vpython/linux-386
 	git_revision:7989c7a87b25083bd8872f9216ba4819c18ab097