feature: solve the lock_key length problem

[zjinlei]

Ⅰ. Describe what this PR did

Ⅱ. Does this pull request fix one issue?

fixes #1904

Ⅲ. Why don't you add test cases (unit test/integration test)?

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[codecov-io]

Codecov Report

Merging #1905 into develop will decrease coverage by 0.23%.
The diff coverage is 19.41%.

@@              Coverage Diff              @@
##             develop    #1905      +/-   ##
=============================================
- Coverage       55.5%   55.26%   -0.24%     
+ Complexity      2433     2431       -2     
=============================================
  Files            430      431       +1     
  Lines          14397    14442      +45     
  Branches        1707     1708       +1     
=============================================
- Hits            7991     7982       -9     
- Misses          5680     5734      +54     
  Partials         726      726

Impacted Files	Coverage Δ	Complexity Δ
...rver/store/db/DatabaseTransactionStoreManager.java	65.38% <ø> (-0.53%)	22 <0> (ø)
...o/seata/core/constants/ServerTableColumnsName.java	0% <ø> (ø)	0 <0> (ø)	⬇️
...main/java/io/seata/core/store/db/LogStoreSqls.java	18.86% <ø> (ø)	10 <0> (ø)	⬇️
.../java/io/seata/core/store/BranchTransactionDO.java	91.66% <ø> (-0.65%)	21 <0> (-2)
...ain/java/io/seata/core/store/db/LockStoreSqls.java	21.42% <0%> (-3.58%)	3 <0> (ø)
...n/java/io/seata/server/lock/db/DataBaseLocker.java	16.27% <0%> (-7.86%)	5 <0> (ø)
...a/io/seata/server/lock/db/DataBaseLockManager.java	0% <0%> (ø)	0 <0> (?)
...a/io/seata/core/store/db/LockStoreDataBaseDAO.java	43.07% <0%> (-7.53%)	18 <0> (ø)
...c/main/java/io/seata/core/lock/AbstractLocker.java	0% <0%> (ø)	0 <0> (ø)	⬇️
...va/io/seata/core/store/db/LogStoreDataBaseDAO.java	55.44% <100%> (-0.3%)	21 <0> (ø)
... and 4 more

[slievrly]

function check pass.

[slievrly]

File mode releases the lock according to pk, db mode releases the lock according to branchId, and branch_table will no longer store lock_key information. AbstractLockManager will be promoted to a common logical base class, and DefaultLockManager will be used as a non-db mode processing class.

[slievrly]

LGTM

[jsbxyyx]

LGTM