Use updated version of kopia that has proper in-memory caching (#3958)

Update kopia version and remove now-unneeded code from
tests

---

#### Does this PR need a docs update or release note?

- [ ] ✅ Yes, it's included
- [ ] 🕐 Yes, but in a later PR
- [x] ⛔ No

#### Type of change

- [ ] 🌻 Feature
- [x] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [ ] 🤖 Supportability/Tests
- [ ] 💻 CI/Deployment
- [ ] 🧹 Tech Debt/Cleanup

#### Issue(s)

* #3519

#### Test Plan

- [ ] 💪 Manual
- [x] ⚡ Unit test
- [ ] 💚 E2E

src/go.mod

@@ -2,7 +2,7 @@ module github.com/alcionai/corso/src
 
 go 1.20
 
-replace github.com/kopia/kopia => github.com/alcionai/kopia v0.12.2-0.20230713235606-4c85869e9377
+replace github.com/kopia/kopia => github.com/alcionai/kopia v0.12.2-0.20230803184432-5f2a35eade6b
 
 require (
 	github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.3.0

src/go.sum

@@ -55,8 +55,8 @@ github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d h1:licZJFw2RwpH
 github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d/go.mod h1:asat636LX7Bqt5lYEZ27JNDcqxfjdBQuJ/MM4CN/Lzo=
 github.com/alcionai/clues v0.0.0-20230728164842-7dc4795a43e4 h1:husF7eAYw2HEzgjfAmNy+ZLzyztJV2SyoUngSUo829Y=
 github.com/alcionai/clues v0.0.0-20230728164842-7dc4795a43e4/go.mod h1:MLEWSZ0cjEMg6hiGCRvE7AtrOhs7deBcm7ZrJBpfGRM=
-github.com/alcionai/kopia v0.12.2-0.20230713235606-4c85869e9377 h1:w50/aVU+zRP5lvE86TSSCCYrrEyuXOlJA06R5RdTS8Y=
+github.com/alcionai/kopia v0.12.2-0.20230803184432-5f2a35eade6b h1:pkTllM0wtHVFnHfI3vXPYh1ObD4FKo2G2G/qWqzmIfY=
-github.com/alcionai/kopia v0.12.2-0.20230713235606-4c85869e9377/go.mod h1:WH725ws0BYpZpTkVh4uqFHHPiiJuirl1Cm73jv5RYyA=
+github.com/alcionai/kopia v0.12.2-0.20230803184432-5f2a35eade6b/go.mod h1:WH725ws0BYpZpTkVh4uqFHHPiiJuirl1Cm73jv5RYyA=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=

src/internal/kopia/wrapper_test.go

@@ -369,26 +369,6 @@ func checkRetentionParams(
 	expectExtend(t, params.ExtendObjectLocks, "extend object locks")
 }
 
-// mustReopen closes and reopens the connection that w uses. Assumes no other
-// structs besides w are holding a reference to the conn that w has.
-// TODO(ashmrtn): Remove this when kopia caching is fixed.
-//
-//revive:disable-next-line:context-as-argument
-func mustReopen(t *testing.T, ctx context.Context, w *Wrapper) {
-	k := w.c
-
-	err := w.Close(ctx)
-	require.NoError(t, err, "closing wrapper: %v", clues.ToCore(err))
-
-	err = k.Close(ctx)
-	require.NoError(t, err, "closing conn: %v", clues.ToCore(err))
-
-	err = k.Connect(ctx, repository.Options{})
-	require.NoError(t, err, "reconnecting conn: %v", clues.ToCore(err))
-
-	w.c = k
-}
-
 type RetentionIntegrationSuite struct {
 	tester.Suite
 }
@@ -520,7 +500,6 @@ func (suite *RetentionIntegrationSuite) TestSetRetentionParameters() {
 			err = w.SetRetentionParameters(ctx, test.opts)
 			test.expectErr(t, err, clues.ToCore(err))
 
-			mustReopen(t, ctx, w)
 			checkRetentionParams(
 				t,
 				ctx,
@@ -562,7 +541,6 @@ func (suite *RetentionIntegrationSuite) TestSetRetentionParameters_And_Maintenan
 	})
 	require.NoError(t, err, clues.ToCore(err))
 
-	mustReopen(t, ctx, w)
 	checkRetentionParams(
 		t,
 		ctx,
@@ -577,7 +555,6 @@ func (suite *RetentionIntegrationSuite) TestSetRetentionParameters_And_Maintenan
 	})
 	require.NoError(t, err, clues.ToCore(err))
 
-	mustReopen(t, ctx, w)
 	checkRetentionParams(
 		t,
 		ctx,
@@ -592,7 +569,6 @@ func (suite *RetentionIntegrationSuite) TestSetRetentionParameters_And_Maintenan
 	})
 	require.NoError(t, err, clues.ToCore(err))
 
-	mustReopen(t, ctx, w)
 	checkRetentionParams(
 		t,
 		ctx,
@@ -607,7 +583,6 @@ func (suite *RetentionIntegrationSuite) TestSetRetentionParameters_And_Maintenan
 	})
 	require.NoError(t, err, clues.ToCore(err))
 
-	mustReopen(t, ctx, w)
 	checkRetentionParams(
 		t,
 		ctx,