ci: sync with 6.x (do not delete branch)

[debdutdeb]

• fix: new revision with bridge epoch
• fix: newest 6.x revision epoch revised
• Bump Rocket.Chat version to 6.1.6
• chore: bump version to 6.2.0
• fix: version comparison in candidate releases
• chore: add core team notifications
• fix: always run notification step
• chore: version context in notifications
• new: add tests to force release workflow
• Bump Rocket.Chat version to 6.2.8
• Bump Rocket.Chat version to 6.2.9
• Bump Rocket.Chat version to 6.2.10
• Bump Rocket.Chat version to 6.2.11
• Bump version to 6.3.0
• Bump Rocket.Chat version to 6.2.12
• Bump Rocket.Chat version to 6.3.1
• Bump Rocket.Chat version to 6.3.2
• Bump Rocket.Chat version to 6.3.3
• Bump Rocket.Chat version to 6.3.4
• Bump Rocket.Chat version to 6.3.5
• Bump Rocket.Chat version to 6.3.6
• Bump Rocket.Chat version to 6.3.7
• Bump Rocket.Chat version to 6.3.8
• Bump Rocket.Chat version to 6.4.0
• Bump Rocket.Chat version to 6.3.9
• Bump Rocket.Chat version to 6.3.10
• Bump Rocket.Chat version to 6.4.1
• Bump Rocket.Chat version to 6.4.2
• Bump Rocket.Chat version to 6.4.3
• Bump Rocket.Chat version to 6.4.4
• Bump Rocket.Chat version to 6.4.5
• Bump Rocket.Chat version to 6.3.11
• Bump Rocket.Chat version to 6.4.6
• Bump Rocket.Chat version to 6.3.12
• Bump Rocket.Chat version to 6.4.7
• Bump Rocket.Chat version to 6.4.8
• Bump Rocket.Chat version to 6.5.0
• Bump Rocket.Chat version to 6.5.1
• Bump Rocket.Chat version to 6.5.2
• Bump Rocket.Chat version to 6.4.9
• ci: don't calculate greater than as it is all consuming and can fail for lack of context (#67)
• ci: remove ci notifications
• snap: set the actual released version

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