fix: BodyContainsBytes & BodyContainsString used with And/Or

Both "rearm" the body before (re-)reading it, so they can be used
several times in a same matcher (combined with Or & And).

At the same time, simplify the body copy and make the "rearming" more
performant.

Closes #145.

Signed-off-by: Maxime Soulé <[email protected]>

Merge pull request #139 from jarcoal/go120

ci: test with go1.20

Merge pull request #128 from roboslone/v1

Fix concurrent map writes to oldClients

Merge pull request #119 from jarcoal/unregister

feat: registering a nil responder unregisters it

Merge pull request #104 from c-roussel/add-multiple-responses-responder

feat: multiple responses responder

Merge pull request #102 from jarcoal/github-action

ci: new github action

Merge pull request #94 from maxatome/v1

Responder generated by httpmock can now be used concurrently

Merge pull request #86 from maxatome/v1

Add ZeroCallCounters()

Merge pull request #74 from maxatome/v1

Update doc

Merge pull request #72 from maxatome/v1

NewNotFoundResponder() stack trace reworked