New version v0.15.0

#1260 | [vinamra28] Use goreleaser task from tektoncd/catalog | 2020/11/18-09:01
#1261 | [Pradeep Kumar] update README to v0.14.0 | 2020/11/18-12:25
#1259 | [Pratik Jagrut] Add --no-headers flag to tkn condition list command | 2020/11/25-12:19
#1257 | [Chmouel Boudjnah] Use debian/VERSION when building debian package | 2020/11/25-12:33
#1254 | [Pratik Jagrut] Add --no-headers flag to tkn triggerbinding list command | 2020/11/25-14:13
#1255 | [Pratik Jagrut] Add --no-headers flag to tkn triggertemplate list command | 2020/11/25-14:13
#1258 | [Pratik Jagrut] Add --no-headers flag to tkn eventlistener list command | 2020/11/25-15:11
#1178 | [Vincent Demeester] Basic execution plugin module 📟 | 2020/12/01-12:25
#1242 | [Daniel Helfand] allow --prefix-name and --timeout to be overrode when using --last or --use options | 2020/12/01-12:25
#1250 | [Sunghoon Kang] Ignore --follow flag when TaskRun or PipelineRun is done | 2020/12/02-15:28
null | [SM43] Bumps Hub CLI Dependency | 2020/12/16-12:32
null | [Matt Moore] Hoist an ActivityTimeout option. | 2020/12/16-18:26
null | [Pradeep Kumar] bump pipeline and triggers dep | 2020/12/17-07:47
null | [Daniel Helfand] remove --check shorthand and add global flags to version cmd | 2020/12/17-08:59

Signed-off-by: Chmouel Boudjnah <chmouel@redhat.com>

VERSION

@@ -0,0 +1 @@
+0.15.0