Bump @bower_components/backbone from 1.3.3 to 1.4.0 in /build

Bumps [@bower_components/backbone](https://github.com/jashkenas/backbone) from 1.3.3 to 1.4.0.
- [Release notes](https://github.com/jashkenas/backbone/releases)
- [Commits](jashkenas/backbone@8ec8860...5de45fc)

Signed-off-by: dependabot[bot] <support@dependabot.com>

build/package.json

@@ -10,7 +10,7 @@
  "homepage": "https://github.com/owncloud/",
  "contributors": [],
  "dependencies": {
- "@bower_components/backbone": "jashkenas/backbone#1.3.3",
+ "@bower_components/backbone": "jashkenas/backbone#1.4.0",
  "@bower_components/base64": "davidchambers/Base64.js#1.0.2",
  "@bower_components/blueimp-md5": "blueimp/JavaScript-MD5#2.10.0",
  "@bower_components/bootstrap": "twbs/bootstrap#3.3.7",

build/yarn.lock

@@ -2,9 +2,10 @@
 # yarn lockfile v1
 
 
-"@bower_components/backbone@jashkenas/backbone#1.3.3":
- version "1.3.3"
- resolved "https://codeload.github.com/jashkenas/backbone/tar.gz/8ec88604732944f197b352a6be22c8216ea9d3a1"
+"@bower_components/backbone@jashkenas/backbone#1.4.0":
+ version "1.4.0"
+ uid "5de45fc9e1cbe5f61cf459067207bbe73451ac91"
+ resolved "https://codeload.github.com/jashkenas/backbone/tar.gz/5de45fc9e1cbe5f61cf459067207bbe73451ac91"
  dependencies:
  underscore ">=1.8.3"
 
@@ -24,8 +25,9 @@
  version "1.9.4"
  resolved "https://codeload.github.com/ded/bowser/tar.gz/1fb99ced0e8834fd9662604bad7e0f0c3eba2786"
 
-"@bower_components/browser-update@Graffino/Browser-Update#2.0.2":
+"@bower_components/browser-update@Graffino/Browser-Update#v2.0.2":
  version "2.0.2"
+ uid "0edda8c7f53ad2cbe68538c00b8c790513096d60"
  resolved "https://codeload.github.com/Graffino/Browser-Update/tar.gz/0edda8c7f53ad2cbe68538c00b8c790513096d60"
 
 "@bower_components/clipboard@zenorocha/clipboard.js#v2.0.4":
@@ -1125,7 +1127,7 @@ glob@^7.0.5, glob@^7.1.1, glob@^7.1.2:
  once "^1.3.0"
  path-is-absolute "^1.0.0"
 
-good-listener@^1.1.6:
+good-listener@^1.2.2:
  version "1.2.2"
  resolved "https://registry.yarnpkg.com/good-listener/-/good-listener-1.2.2.tgz#d53b30cdf9313dffb7dc9a0d477096aa6d145c50"
  dependencies:
@@ -2504,7 +2506,7 @@ sax@^1.2.4:
  version "1.2.4"
  resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
 
-select@^1.0.6:
+select@^1.1.2:
  version "1.1.2"
  resolved "https://registry.yarnpkg.com/select/-/select-1.1.2.tgz#0e7350acdec80b1108528786ec1d4418d11b396d"
 
@@ -2846,9 +2848,9 @@ throttleit@^1.0.0:
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/throttleit/-/throttleit-1.0.0.tgz#9e785836daf46743145a5984b6268d828528ac6c"
 
-tiny-emitter@^1.0.0:
- version "1.2.0"
- resolved "https://registry.yarnpkg.com/tiny-emitter/-/tiny-emitter-1.2.0.tgz#6dc845052cb08ebefc1874723b58f24a648c3b6f"
+tiny-emitter@^2.0.0:
+ version "2.1.0"
+ resolved "https://registry.yarnpkg.com/tiny-emitter/-/tiny-emitter-2.1.0.tgz#1d1a56edfc51c43e863cbb5382a72330e3555423"
 
 tmp@0.0.33, tmp@0.0.x:
  version "0.0.33"