Merge branch 'patch-87' into 'master'

Add solution validation template

See merge request gitlab-org/gitlab!26419

.gitlab/issue_templates/Solution_validation

+<!--Please answer the below questions to the best of your ability.-->
+
+#### What's this issue all about? (Background and context)
+
+#### What hypotheses and/or assumptions do you have?
+
+#### What questions are you trying to answer?
+
+#### What research methodology do you intend to use?
+
+<!-- What needs to be answered to move work forward? If you have a completed Opportunity Canvas include a link.-->
+
+#### What persona, persona segment, or customer type experiences the problem most acutely?
+
+#### What business decisions will be made based on this information?
+
+#### What, if any, relevant prior research already exists?
+
+<!-- Have a look at our UXR_Insights repo: https://gitlab.com/gitlab-org/uxr_insights -->
+
+#### Who will be leading the research?
+
+#### What timescales do you have in mind for the research?
+
+#### Relevant links (problem validation issue, design issue, script, prototype, notes, etc.)
+
+<!-- #### TODO Checklist
+ Consider adding a checklist in order to keep track of what stage the research is up to. Some possible checklist templates are here:
+ https://about.gitlab.com/handbook/engineering/ux/ux-research-training/templates-resources-for-research-studies/#checklists
+ -->
+
+/label ~"workflow::solution validation"
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