Chore: Remove v0.3 from issue templates (#1036)

As discussed in #1034 (comment)

Author: nantiferov

.github/ISSUE_TEMPLATE/bug_report.md

@@ -10,11 +10,6 @@ assignees: oliver006
 **Describe the problem**
 A clear and concise description of what the bug is.
 
-**What version of redis_exporter are you running?**
-Please run `redis_exporter --version` if you're not sure what version you're running.
-[ ] 0.3x.x
-[ ] 1.x.x
-
 
 **Running the exporter**
 What's the full command you're using to run the exporter? (please remove passwords and other sensitive data)

.github/ISSUE_TEMPLATE/question.md

@@ -10,11 +10,6 @@ assignees: oliver006
 **Describe the problem**
 A clear and concise description of what the question is.
 
-**What version of redis_exporter are you running?**
-Please run `redis_exporter --version` if you're not sure what version you're running.
-[ ] 0.3x.x
-[ ] 1.x.x
-
 
 **Running the exporter**
 What's the full command you're using to run the exporter? (please remove passwords and other sensitive data)