[go1.15] update golang.org/x/... deps to 1.15 versions

hack/pin-dependency.sh golang.org/x/crypto  release-branch.go1.15
hack/pin-dependency.sh golang.org/x/mod     release-branch.go1.15
hack/pin-dependency.sh golang.org/x/net     release-branch.go1.15
hack/pin-dependency.sh golang.org/x/text    v0.3.3
hack/pin-dependency.sh golang.org/x/tools   release-branch.go1.15
hack/pin-dependency.sh golang.org/x/xerrors release-branch.go1.15

Did not pin golang.org/x/sys to release-branch.go1.15 because we require a newer level

Author: liggitt

go.mod

@@ -98,12 +98,12 @@ require (
 	github.com/vishvananda/netlink v1.1.0
 	github.com/vmware/govmomi v0.20.3
 	go.etcd.io/etcd v0.5.0-alpha.5.0.20200716221620-18dfb9cca345
-	golang.org/x/crypto v0.0.0-20200220183623-bac4c82f6975
-	golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e
+	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
+	golang.org/x/net v0.0.0-20200707034311-ab3426394381
 	golang.org/x/oauth2 v0.0.0-20191202225959-858c2ad4c8b6
 	golang.org/x/sys v0.0.0-20200622214017-ed371f2e16b4
 	golang.org/x/time v0.0.0-20191024005414-555d28b269f0
-	golang.org/x/tools v0.0.0-20200602230032-c00d67ef29d0
+	golang.org/x/tools v0.0.0-20200616133436-c1934b75d054
 	gonum.org/v1/gonum v0.6.2
 	gonum.org/v1/netlib v0.0.0-20190331212654-76723241ea4e // indirect
 	google.golang.org/api v0.15.1
@@ -419,19 +419,19 @@ replace (
 	go.uber.org/atomic => go.uber.org/atomic v1.4.0
 	go.uber.org/multierr => go.uber.org/multierr v1.1.0
 	go.uber.org/zap => go.uber.org/zap v1.10.0
-	golang.org/x/crypto => golang.org/x/crypto v0.0.0-20200220183623-bac4c82f6975
+	golang.org/x/crypto => golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
 	golang.org/x/exp => golang.org/x/exp v0.0.0-20191227195350-da58074b4299
 	golang.org/x/image => golang.org/x/image v0.0.0-20190802002840-cff245a6509b
 	golang.org/x/lint => golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f
 	golang.org/x/mobile => golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028
-	golang.org/x/mod => golang.org/x/mod v0.1.0
-	golang.org/x/net => golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e
+	golang.org/x/mod => golang.org/x/mod v0.3.0
+	golang.org/x/net => golang.org/x/net v0.0.0-20200707034311-ab3426394381
 	golang.org/x/oauth2 => golang.org/x/oauth2 v0.0.0-20191202225959-858c2ad4c8b6
 	golang.org/x/sync => golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e
-	golang.org/x/sys => golang.org/x/sys v0.0.0-20200622214017-ed371f2e16b4 // pinned to release-branch.go1.14-std
+	golang.org/x/sys => golang.org/x/sys v0.0.0-20200622214017-ed371f2e16b4
 	golang.org/x/text => golang.org/x/text v0.3.3
 	golang.org/x/time => golang.org/x/time v0.0.0-20191024005414-555d28b269f0
-	golang.org/x/tools => golang.org/x/tools v0.0.0-20200602230032-c00d67ef29d0 // pinned to release-branch.go1.14
+	golang.org/x/tools => golang.org/x/tools v0.0.0-20200616133436-c1934b75d054
 	golang.org/x/xerrors => golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543
 	gonum.org/v1/gonum => gonum.org/v1/gonum v0.6.2
 	gonum.org/v1/netlib => gonum.org/v1/netlib v0.0.0-20190331212654-76723241ea4e